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Finding the Fourth Proportional to 425,630.08, 636,562.68 and 378,575.56

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Solution

The fourth proportional to 425,630.08, 636,562.68 and 378,575.56 is: 566,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,630.08 : 636,562.68 = 378,575.56 : x
  2. Step 2: Convert to fraction form
    425,630.08/636,562.68 = 378,575.56/x
  3. Step 3: Cross multiply
    425,630.08x = 636,562.68 × 378,575.56
  4. Step 4: Simplify right side
    425,630.08x = 240,987,073,056.10
  5. Step 5: Solve for x
    x = 240,987,073,056.10/425,630.08
  6. Step 6: Final answer
    x = 566,189.01

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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.