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Finding the Fourth Proportional to 425,327.96, 637,991.95 and 125,785.22

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Solution

The fourth proportional to 425,327.96, 637,991.95 and 125,785.22 is: 188,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,327.96 : 637,991.95 = 125,785.22 : x
  2. Step 2: Convert to fraction form
    425,327.96/637,991.95 = 125,785.22/x
  3. Step 3: Cross multiply
    425,327.96x = 637,991.95 × 125,785.22
  4. Step 4: Simplify right side
    425,327.96x = 80,249,957,922.66
  5. Step 5: Solve for x
    x = 80,249,957,922.66/425,327.96
  6. Step 6: Final answer
    x = 188,677.83

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Similar ratio
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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.