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Finding the Fourth Proportional to 667,301.03, 920,874.03 and 361,376.47

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Solution

The fourth proportional to 667,301.03, 920,874.03 and 361,376.47 is: 498,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,301.03 : 920,874.03 = 361,376.47 : x
  2. Step 2: Convert to fraction form
    667,301.03/920,874.03 = 361,376.47/x
  3. Step 3: Cross multiply
    667,301.03x = 920,874.03 × 361,376.47
  4. Step 4: Simplify right side
    667,301.03x = 332,782,206,072.01
  5. Step 5: Solve for x
    x = 332,782,206,072.01/667,301.03
  6. Step 6: Final answer
    x = 498,698.78

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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.