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Finding the Fourth Proportional to 415,071.37, 622,545.04 and 115,520.73

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Solution

The fourth proportional to 415,071.37, 622,545.04 and 115,520.73 is: 173,263.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,071.37 : 622,545.04 = 115,520.73 : x
  2. Step 2: Convert to fraction form
    415,071.37/622,545.04 = 115,520.73/x
  3. Step 3: Cross multiply
    415,071.37x = 622,545.04 × 115,520.73
  4. Step 4: Simplify right side
    415,071.37x = 71,916,857,478.68
  5. Step 5: Solve for x
    x = 71,916,857,478.68/415,071.37
  6. Step 6: Final answer
    x = 173,263.84

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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.