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Finding the Fourth Proportional to 496,545.60, 744,818.40 and 319,252.80

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Solution

The fourth proportional to 496,545.60, 744,818.40 and 319,252.80 is: 478,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,545.60 : 744,818.40 = 319,252.80 : x
  2. Step 2: Convert to fraction form
    496,545.60/744,818.40 = 319,252.80/x
  3. Step 3: Cross multiply
    496,545.60x = 744,818.40 × 319,252.80
  4. Step 4: Simplify right side
    496,545.60x = 237,785,359,691.52
  5. Step 5: Solve for x
    x = 237,785,359,691.52/496,545.60
  6. Step 6: Final answer
    x = 478,879.20

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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.