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Finding the Fourth Proportional to 424,375.34, 636,167.52 and 291,318.26

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Solution

The fourth proportional to 424,375.34, 636,167.52 and 291,318.26 is: 436,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,375.34 : 636,167.52 = 291,318.26 : x
  2. Step 2: Convert to fraction form
    424,375.34/636,167.52 = 291,318.26/x
  3. Step 3: Cross multiply
    424,375.34x = 636,167.52 × 291,318.26
  4. Step 4: Simplify right side
    424,375.34x = 185,327,211,814.08
  5. Step 5: Solve for x
    x = 185,327,211,814.08/424,375.34
  6. Step 6: Final answer
    x = 436,705.90

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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.