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Finding the Fourth Proportional to 667,635.03, 921,337.24 and 361,711.43

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Solution

The fourth proportional to 667,635.03, 921,337.24 and 361,711.43 is: 499,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,635.03 : 921,337.24 = 361,711.43 : x
  2. Step 2: Convert to fraction form
    667,635.03/921,337.24 = 361,711.43/x
  3. Step 3: Cross multiply
    667,635.03x = 921,337.24 × 361,711.43
  4. Step 4: Simplify right side
    667,635.03x = 333,258,210,592.65
  5. Step 5: Solve for x
    x = 333,258,210,592.65/667,635.03
  6. Step 6: Final answer
    x = 499,162.26

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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.