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Finding the Fourth Proportional to 521,567.10, 782,350.65 and 497,072.70

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Solution

The fourth proportional to 521,567.10, 782,350.65 and 497,072.70 is: 745,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567.10 : 782,350.65 = 497,072.70 : x
  2. Step 2: Convert to fraction form
    521,567.10/782,350.65 = 497,072.70/x
  3. Step 3: Cross multiply
    521,567.10x = 782,350.65 × 497,072.70
  4. Step 4: Simplify right side
    521,567.10x = 388,885,149,942.26
  5. Step 5: Solve for x
    x = 388,885,149,942.26/521,567.10
  6. Step 6: Final answer
    x = 745,609.05

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Double scale
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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.