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Finding the Fourth Proportional to 663,250.62, 915,310.44 and 376,819.32

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Solution

The fourth proportional to 663,250.62, 915,310.44 and 376,819.32 is: 520,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,250.62 : 915,310.44 = 376,819.32 : x
  2. Step 2: Convert to fraction form
    663,250.62/915,310.44 = 376,819.32/x
  3. Step 3: Cross multiply
    663,250.62x = 915,310.44 × 376,819.32
  4. Step 4: Simplify right side
    663,250.62x = 344,906,657,589.70
  5. Step 5: Solve for x
    x = 344,906,657,589.70/663,250.62
  6. Step 6: Final answer
    x = 520,024.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.