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Finding the Fourth Proportional to 502,511.20, 753,766.80 and 471,407.20

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Solution

The fourth proportional to 502,511.20, 753,766.80 and 471,407.20 is: 707,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,511.20 : 753,766.80 = 471,407.20 : x
  2. Step 2: Convert to fraction form
    502,511.20/753,766.80 = 471,407.20/x
  3. Step 3: Cross multiply
    502,511.20x = 753,766.80 × 471,407.20
  4. Step 4: Simplify right side
    502,511.20x = 355,331,096,640.96
  5. Step 5: Solve for x
    x = 355,331,096,640.96/502,511.20
  6. Step 6: Final answer
    x = 707,110.80

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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.