Home / 439,005.20-658,621.41-135,392.64

Finding the Fourth Proportional to 439,005.20, 658,621.41 and 135,392.64

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Solution

The fourth proportional to 439,005.20, 658,621.41 and 135,392.64 is: 203,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,005.20 : 658,621.41 = 135,392.64 : x
  2. Step 2: Convert to fraction form
    439,005.20/658,621.41 = 135,392.64/x
  3. Step 3: Cross multiply
    439,005.20x = 658,621.41 × 135,392.64
  4. Step 4: Simplify right side
    439,005.20x = 89,172,491,460.42
  5. Step 5: Solve for x
    x = 89,172,491,460.42/439,005.20
  6. Step 6: Final answer
    x = 203,124.00

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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.