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Finding the Fourth Proportional to 324,634.20, 486,720.90 and 124,877.40

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Solution

The fourth proportional to 324,634.20, 486,720.90 and 124,877.40 is: 187,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,634.20 : 486,720.90 = 124,877.40 : x
  2. Step 2: Convert to fraction form
    324,634.20/486,720.90 = 124,877.40/x
  3. Step 3: Cross multiply
    324,634.20x = 486,720.90 × 124,877.40
  4. Step 4: Simplify right side
    324,634.20x = 60,780,440,517.66
  5. Step 5: Solve for x
    x = 60,780,440,517.66/324,634.20
  6. Step 6: Final answer
    x = 187,227.47

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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.