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Finding the Fourth Proportional to 412,375.77, 618,540.84 and 112,834.85

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Solution

The fourth proportional to 412,375.77, 618,540.84 and 112,834.85 is: 169,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,375.77 : 618,540.84 = 112,834.85 : x
  2. Step 2: Convert to fraction form
    412,375.77/618,540.84 = 112,834.85/x
  3. Step 3: Cross multiply
    412,375.77x = 618,540.84 × 112,834.85
  4. Step 4: Simplify right side
    412,375.77x = 69,792,961,309.21
  5. Step 5: Solve for x
    x = 69,792,961,309.21/412,375.77
  6. Step 6: Final answer
    x = 169,246.03

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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.