Home / 439,163.60-658,774.20-123,630.80

Finding the Fourth Proportional to 439,163.60, 658,774.20 and 123,630.80

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Solution

The fourth proportional to 439,163.60, 658,774.20 and 123,630.80 is: 185,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,163.60 : 658,774.20 = 123,630.80 : x
  2. Step 2: Convert to fraction form
    439,163.60/658,774.20 = 123,630.80/x
  3. Step 3: Cross multiply
    439,163.60x = 658,774.20 × 123,630.80
  4. Step 4: Simplify right side
    439,163.60x = 81,444,781,365.36
  5. Step 5: Solve for x
    x = 81,444,781,365.36/439,163.60
  6. Step 6: Final answer
    x = 185,454.31

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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.