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Finding the Fourth Proportional to 482,887.40, 724,331.10 and 127,956.20

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Solution

The fourth proportional to 482,887.40, 724,331.10 and 127,956.20 is: 191,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,887.40 : 724,331.10 = 127,956.20 : x
  2. Step 2: Convert to fraction form
    482,887.40/724,331.10 = 127,956.20/x
  3. Step 3: Cross multiply
    482,887.40x = 724,331.10 × 127,956.20
  4. Step 4: Simplify right side
    482,887.40x = 92,682,655,097.82
  5. Step 5: Solve for x
    x = 92,682,655,097.82/482,887.40
  6. Step 6: Final answer
    x = 191,934.30

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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.