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Finding the Fourth Proportional to 449,836.88, 674,422 and 272,301.92

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Solution

The fourth proportional to 449,836.88, 674,422 and 272,301.92 is: 408,251.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,836.88 : 674,422 = 272,301.92 : x
  2. Step 2: Convert to fraction form
    449,836.88/674,422 = 272,301.92/x
  3. Step 3: Cross multiply
    449,836.88x = 674,422 × 272,301.92
  4. Step 4: Simplify right side
    449,836.88x = 183,646,405,490.24
  5. Step 5: Solve for x
    x = 183,646,405,490.24/449,836.88
  6. Step 6: Final answer
    x = 408,251.11

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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.