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Finding the Fourth Proportional to 634,499.28, 950,479.92 and 381,640.14

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Solution

The fourth proportional to 634,499.28, 950,479.92 and 381,640.14 is: 571,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,499.28 : 950,479.92 = 381,640.14 : x
  2. Step 2: Convert to fraction form
    634,499.28/950,479.92 = 381,640.14/x
  3. Step 3: Cross multiply
    634,499.28x = 950,479.92 × 381,640.14
  4. Step 4: Simplify right side
    634,499.28x = 362,741,289,735.99
  5. Step 5: Solve for x
    x = 362,741,289,735.99/634,499.28
  6. Step 6: Final answer
    x = 571,696.93

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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.