Finding the Fourth Proportional to 1,163,305.60, 1,605,361.68 and 680,276.58
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Solution
The fourth proportional to 1,163,305.60, 1,605,361.68 and 680,276.58 is: 938,781.65
Step by Step Solution
- Step 1: Write the proportion equation
1,163,305.60 : 1,605,361.68 = 680,276.58 : x - Step 2: Convert to fraction form
1,163,305.60/1,605,361.68 = 680,276.58/x - Step 3: Cross multiply
1,163,305.60x = 1,605,361.68 × 680,276.58 - Step 4: Simplify right side
1,163,305.60x = 1,092,089,947,313.35 - Step 5: Solve for x
x = 1,092,089,947,313.35/1,163,305.60 - Step 6: Final answer
x = 938,781.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.