Home / 440,042.40-659,998.80-124,531.20

Finding the Fourth Proportional to 440,042.40, 659,998.80 and 124,531.20

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Solution

The fourth proportional to 440,042.40, 659,998.80 and 124,531.20 is: 186,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,042.40 : 659,998.80 = 124,531.20 : x
  2. Step 2: Convert to fraction form
    440,042.40/659,998.80 = 124,531.20/x
  3. Step 3: Cross multiply
    440,042.40x = 659,998.80 × 124,531.20
  4. Step 4: Simplify right side
    440,042.40x = 82,190,442,562.56
  5. Step 5: Solve for x
    x = 82,190,442,562.56/440,042.40
  6. Step 6: Final answer
    x = 186,778.46

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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.