Home / 439,612.20-659,418.30-329,020.20

Finding the Fourth Proportional to 439,612.20, 659,418.30 and 329,020.20

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Solution

The fourth proportional to 439,612.20, 659,418.30 and 329,020.20 is: 493,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,612.20 : 659,418.30 = 329,020.20 : x
  2. Step 2: Convert to fraction form
    439,612.20/659,418.30 = 329,020.20/x
  3. Step 3: Cross multiply
    439,612.20x = 659,418.30 × 329,020.20
  4. Step 4: Simplify right side
    439,612.20x = 216,961,940,949.66
  5. Step 5: Solve for x
    x = 216,961,940,949.66/439,612.20
  6. Step 6: Final answer
    x = 493,530.30

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Similar ratio
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1.5x scale

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.