Home / 412,520.54-618,781.34-113,003.75

Finding the Fourth Proportional to 412,520.54, 618,781.34 and 113,003.75

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Solution

The fourth proportional to 412,520.54, 618,781.34 and 113,003.75 is: 169,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,520.54 : 618,781.34 = 113,003.75 : x
  2. Step 2: Convert to fraction form
    412,520.54/618,781.34 = 113,003.75/x
  3. Step 3: Cross multiply
    412,520.54x = 618,781.34 × 113,003.75
  4. Step 4: Simplify right side
    412,520.54x = 69,924,608,756.12
  5. Step 5: Solve for x
    x = 69,924,608,756.12/412,520.54
  6. Step 6: Final answer
    x = 169,505.76

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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.