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Finding the Fourth Proportional to 520,922.44, 781,501.50 and 165,956.68

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Solution

The fourth proportional to 520,922.44, 781,501.50 and 165,956.68 is: 248,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,922.44 : 781,501.50 = 165,956.68 : x
  2. Step 2: Convert to fraction form
    520,922.44/781,501.50 = 165,956.68/x
  3. Step 3: Cross multiply
    520,922.44x = 781,501.50 × 165,956.68
  4. Step 4: Simplify right side
    520,922.44x = 129,695,394,355.02
  5. Step 5: Solve for x
    x = 129,695,394,355.02/520,922.44
  6. Step 6: Final answer
    x = 248,972.56

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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.