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Finding the Fourth Proportional to 500,800.92, 691,122.96 and 274,446.42

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Solution

The fourth proportional to 500,800.92, 691,122.96 and 274,446.42 is: 378,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,800.92 : 691,122.96 = 274,446.42 : x
  2. Step 2: Convert to fraction form
    500,800.92/691,122.96 = 274,446.42/x
  3. Step 3: Cross multiply
    500,800.92x = 691,122.96 × 274,446.42
  4. Step 4: Simplify right side
    500,800.92x = 189,676,222,151.80
  5. Step 5: Solve for x
    x = 189,676,222,151.80/500,800.92
  6. Step 6: Final answer
    x = 378,745.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.