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Finding the Fourth Proportional to 412,519.56, 618,779.84 and 113,002.72

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Solution

The fourth proportional to 412,519.56, 618,779.84 and 113,002.72 is: 169,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,519.56 : 618,779.84 = 113,002.72 : x
  2. Step 2: Convert to fraction form
    412,519.56/618,779.84 = 113,002.72/x
  3. Step 3: Cross multiply
    412,519.56x = 618,779.84 × 113,002.72
  4. Step 4: Simplify right side
    412,519.56x = 69,923,805,001.16
  5. Step 5: Solve for x
    x = 69,923,805,001.16/412,519.56
  6. Step 6: Final answer
    x = 169,504.22

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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.