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Finding the Fourth Proportional to 438,644.06, 656,469.11 and 367,646.85

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Solution

The fourth proportional to 438,644.06, 656,469.11 and 367,646.85 is: 550,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,644.06 : 656,469.11 = 367,646.85 : x
  2. Step 2: Convert to fraction form
    438,644.06/656,469.11 = 367,646.85/x
  3. Step 3: Cross multiply
    438,644.06x = 656,469.11 × 367,646.85
  4. Step 4: Simplify right side
    438,644.06x = 241,348,799,264.91
  5. Step 5: Solve for x
    x = 241,348,799,264.91/438,644.06
  6. Step 6: Final answer
    x = 550,215.59

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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.