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Finding the Fourth Proportional to 387,149.88, 582,998.76 and 337,818.48

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Solution

The fourth proportional to 387,149.88, 582,998.76 and 337,818.48 is: 508,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,149.88 : 582,998.76 = 337,818.48 : x
  2. Step 2: Convert to fraction form
    387,149.88/582,998.76 = 337,818.48/x
  3. Step 3: Cross multiply
    387,149.88x = 582,998.76 × 337,818.48
  4. Step 4: Simplify right side
    387,149.88x = 196,947,754,945.09
  5. Step 5: Solve for x
    x = 196,947,754,945.09/387,149.88
  6. Step 6: Final answer
    x = 508,711.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.