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Finding the Fourth Proportional to 487,761.04, 731,647.71 and 171,996.52

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Solution

The fourth proportional to 487,761.04, 731,647.71 and 171,996.52 is: 257,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,761.04 : 731,647.71 = 171,996.52 : x
  2. Step 2: Convert to fraction form
    487,761.04/731,647.71 = 171,996.52/x
  3. Step 3: Cross multiply
    487,761.04x = 731,647.71 × 171,996.52
  4. Step 4: Simplify right side
    487,761.04x = 125,840,859,985.97
  5. Step 5: Solve for x
    x = 125,840,859,985.97/487,761.04
  6. Step 6: Final answer
    x = 257,996.95

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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.