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Finding the Fourth Proportional to 488,488.60, 732,732.90 and 404,507.80

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Solution

The fourth proportional to 488,488.60, 732,732.90 and 404,507.80 is: 606,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,488.60 : 732,732.90 = 404,507.80 : x
  2. Step 2: Convert to fraction form
    488,488.60/732,732.90 = 404,507.80/x
  3. Step 3: Cross multiply
    488,488.60x = 732,732.90 × 404,507.80
  4. Step 4: Simplify right side
    488,488.60x = 296,396,173,366.62
  5. Step 5: Solve for x
    x = 296,396,173,366.62/488,488.60
  6. Step 6: Final answer
    x = 606,761.70

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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.