Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number.

432 : 111 :: ? : 320 :: 549 : 228

641

432 : 111 :: ? : 320 :: 549 : 228

The logic followed here is

Ist number - 321 = IInd number

As

432 - 321 = 111

And

549 - 321 = 228

Similarly

A - 321 = 320

A = 320 + 321

A = 641