Finding the Fourth Proportional to 521,898.29, 720,207.45 and 307,052.17
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Solution
The fourth proportional to 521,898.29, 720,207.45 and 307,052.17 is: 423,724.82
Step by Step Solution
- Step 1: Write the proportion equation
521,898.29 : 720,207.45 = 307,052.17 : x - Step 2: Convert to fraction form
521,898.29/720,207.45 = 307,052.17/x - Step 3: Cross multiply
521,898.29x = 720,207.45 × 307,052.17 - Step 4: Simplify right side
521,898.29x = 221,141,258,572.15 - Step 5: Solve for x
x = 221,141,258,572.15/521,898.29 - Step 6: Final answer
x = 423,724.82
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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.