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Finding the Fourth Proportional to 625,031.32, 934,877.02 and 521,821.32

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Solution

The fourth proportional to 625,031.32, 934,877.02 and 521,821.32 is: 780,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,031.32 : 934,877.02 = 521,821.32 : x
  2. Step 2: Convert to fraction form
    625,031.32/934,877.02 = 521,821.32/x
  3. Step 3: Cross multiply
    625,031.32x = 934,877.02 × 521,821.32
  4. Step 4: Simplify right side
    625,031.32x = 487,838,760,614.07
  5. Step 5: Solve for x
    x = 487,838,760,614.07/625,031.32
  6. Step 6: Final answer
    x = 780,502.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.