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Finding the Fourth Proportional to 478,240.52, 659,967.54 and 263,375.97

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Solution

The fourth proportional to 478,240.52, 659,967.54 and 263,375.97 is: 363,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,240.52 : 659,967.54 = 263,375.97 : x
  2. Step 2: Convert to fraction form
    478,240.52/659,967.54 = 263,375.97/x
  3. Step 3: Cross multiply
    478,240.52x = 659,967.54 × 263,375.97
  4. Step 4: Simplify right side
    478,240.52x = 173,819,591,016.01
  5. Step 5: Solve for x
    x = 173,819,591,016.01/478,240.52
  6. Step 6: Final answer
    x = 363,456.43

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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.