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Finding the Fourth Proportional to 664,427.40, 996,641.10 and 531,567.15

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Solution

The fourth proportional to 664,427.40, 996,641.10 and 531,567.15 is: 797,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,427.40 : 996,641.10 = 531,567.15 : x
  2. Step 2: Convert to fraction form
    664,427.40/996,641.10 = 531,567.15/x
  3. Step 3: Cross multiply
    664,427.40x = 996,641.10 × 531,567.15
  4. Step 4: Simplify right side
    664,427.40x = 529,781,669,099.87
  5. Step 5: Solve for x
    x = 529,781,669,099.87/664,427.40
  6. Step 6: Final answer
    x = 797,350.73

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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.