Finding the Fourth Proportional to 913,250.79, 1,260,639.41 and 817,591.41
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Solution
The fourth proportional to 913,250.79, 1,260,639.41 and 817,591.41 is: 1,128,592.45
Step by Step Solution
- Step 1: Write the proportion equation
913,250.79 : 1,260,639.41 = 817,591.41 : x - Step 2: Convert to fraction form
913,250.79/1,260,639.41 = 817,591.41/x - Step 3: Cross multiply
913,250.79x = 1,260,639.41 × 817,591.41 - Step 4: Simplify right side
913,250.79x = 1,030,687,948,635.51 - Step 5: Solve for x
x = 1,030,687,948,635.51/913,250.79 - Step 6: Final answer
x = 1,128,592.45
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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.