Home / 412,518.56-618,778.34-113,001.72

Finding the Fourth Proportional to 412,518.56, 618,778.34 and 113,001.72

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Solution

The fourth proportional to 412,518.56, 618,778.34 and 113,001.72 is: 169,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,518.56 : 618,778.34 = 113,001.72 : x
  2. Step 2: Convert to fraction form
    412,518.56/618,778.34 = 113,001.72/x
  3. Step 3: Cross multiply
    412,518.56x = 618,778.34 × 113,001.72
  4. Step 4: Simplify right side
    412,518.56x = 69,923,016,153.74
  5. Step 5: Solve for x
    x = 69,923,016,153.74/412,518.56
  6. Step 6: Final answer
    x = 169,502.72

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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.