Finding the Fourth Proportional to 523,449.28, 721,634.40 and 353,414.08
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Solution
The fourth proportional to 523,449.28, 721,634.40 and 353,414.08 is: 487,221.53
Step by Step Solution
- Step 1: Write the proportion equation
523,449.28 : 721,634.40 = 353,414.08 : x - Step 2: Convert to fraction form
523,449.28/721,634.40 = 353,414.08/x - Step 3: Cross multiply
523,449.28x = 721,634.40 × 353,414.08 - Step 4: Simplify right side
523,449.28x = 255,035,757,572.35 - Step 5: Solve for x
x = 255,035,757,572.35/523,449.28 - Step 6: Final answer
x = 487,221.53
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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.