Home / 439,223.60-658,864.20-123,690.80

Finding the Fourth Proportional to 439,223.60, 658,864.20 and 123,690.80

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Solution

The fourth proportional to 439,223.60, 658,864.20 and 123,690.80 is: 185,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,223.60 : 658,864.20 = 123,690.80 : x
  2. Step 2: Convert to fraction form
    439,223.60/658,864.20 = 123,690.80/x
  3. Step 3: Cross multiply
    439,223.60x = 658,864.20 × 123,690.80
  4. Step 4: Simplify right side
    439,223.60x = 81,495,439,989.36
  5. Step 5: Solve for x
    x = 81,495,439,989.36/439,223.60
  6. Step 6: Final answer
    x = 185,544.31

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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.