Home / 439,727.60-659,591.40-437,103.20

Finding the Fourth Proportional to 439,727.60, 659,591.40 and 437,103.20

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Solution

The fourth proportional to 439,727.60, 659,591.40 and 437,103.20 is: 655,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,727.60 : 659,591.40 = 437,103.20 : x
  2. Step 2: Convert to fraction form
    439,727.60/659,591.40 = 437,103.20/x
  3. Step 3: Cross multiply
    439,727.60x = 659,591.40 × 437,103.20
  4. Step 4: Simplify right side
    439,727.60x = 288,309,511,632.48
  5. Step 5: Solve for x
    x = 288,309,511,632.48/439,727.60
  6. Step 6: Final answer
    x = 655,654.80

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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.