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Finding the Fourth Proportional to 663,314.00, 915,398.01 and 376,882.61

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Solution

The fourth proportional to 663,314.00, 915,398.01 and 376,882.61 is: 520,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,314.00 : 915,398.01 = 376,882.61 : x
  2. Step 2: Convert to fraction form
    663,314.00/915,398.01 = 376,882.61/x
  3. Step 3: Cross multiply
    663,314.00x = 915,398.01 × 376,882.61
  4. Step 4: Simplify right side
    663,314.00x = 344,997,586,620.62
  5. Step 5: Solve for x
    x = 344,997,586,620.62/663,314.00
  6. Step 6: Final answer
    x = 520,112.03

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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.