Question

Determine whether 1.2, 1.6.0.9, 1.2 is in proportion or not?​

Answer 1

Yes, they are in proportion.

For 4 terms to be in proportion, the ratio of first two terms is supposed to be equal to the ratio of the other two term.

In the given question: 1.2 is to 1.6= 0.75 and 0.9 is to 1.2 = 0.75; therefore, the stated requirement is fulfilled.

Also, for 4 terms to be in proportion, the product of middle two terms is equal to the product of end two term.

In the given question: 1.2×1.2 = 1.44 and 1.6×0.9 = 1.44; therefore, the states requirement is again fulfilled.

Thus, they are in proportion.

Hope it helps

Answer 2

yes , product of extreme = product of mean

Step-by-step explanation:

according to the question

1.2:1.6=0.75 and 0.9:12=0.75

=1.2×1.2=1.44 and 1.6×0.9=1.44

therefore product of extreme= product of mean

I hope it helps