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Finding the Fourth Proportional to 451,249.46, 676,123.70 and 317,847.90

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Solution

The fourth proportional to 451,249.46, 676,123.70 and 317,847.90 is: 476,243.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,249.46 : 676,123.70 = 317,847.90 : x
  2. Step 2: Convert to fraction form
    451,249.46/676,123.70 = 317,847.90/x
  3. Step 3: Cross multiply
    451,249.46x = 676,123.70 × 317,847.90
  4. Step 4: Simplify right side
    451,249.46x = 214,904,498,185.23
  5. Step 5: Solve for x
    x = 214,904,498,185.23/451,249.46
  6. Step 6: Final answer
    x = 476,243.23

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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.