Home / 459,519.30-689,279.20-144,000.90

Finding the Fourth Proportional to 459,519.30, 689,279.20 and 144,000.90

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Solution

The fourth proportional to 459,519.30, 689,279.20 and 144,000.90 is: 216,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,519.30 : 689,279.20 = 144,000.90 : x
  2. Step 2: Convert to fraction form
    459,519.30/689,279.20 = 144,000.90/x
  3. Step 3: Cross multiply
    459,519.30x = 689,279.20 × 144,000.90
  4. Step 4: Simplify right side
    459,519.30x = 99,256,825,151.28
  5. Step 5: Solve for x
    x = 99,256,825,151.28/459,519.30
  6. Step 6: Final answer
    x = 216,001.43

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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.