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Finding the Fourth Proportional to 502,545.70, 753,818.55 and 478,051.30

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Solution

The fourth proportional to 502,545.70, 753,818.55 and 478,051.30 is: 717,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,545.70 : 753,818.55 = 478,051.30 : x
  2. Step 2: Convert to fraction form
    502,545.70/753,818.55 = 478,051.30/x
  3. Step 3: Cross multiply
    502,545.70x = 753,818.55 × 478,051.30
  4. Step 4: Simplify right side
    502,545.70x = 360,363,937,791.62
  5. Step 5: Solve for x
    x = 360,363,937,791.62/502,545.70
  6. Step 6: Final answer
    x = 717,076.95

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Similar ratio
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1.5x scale

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.