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Finding the Fourth Proportional to 800,199.96, 1,200,930.95 and 351,230.73

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Solution

The fourth proportional to 800,199.96, 1,200,930.95 and 351,230.73 is: 527,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,199.96 : 1,200,930.95 = 351,230.73 : x
  2. Step 2: Convert to fraction form
    800,199.96/1,200,930.95 = 351,230.73/x
  3. Step 3: Cross multiply
    800,199.96x = 1,200,930.95 × 351,230.73
  4. Step 4: Simplify right side
    800,199.96x = 421,803,854,248.09
  5. Step 5: Solve for x
    x = 421,803,854,248.09/800,199.96
  6. Step 6: Final answer
    x = 527,123.06

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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.