Home / 1,129,728.13-1,694,591.28-288,279.88

Finding the Fourth Proportional to 1,129,728.13, 1,694,591.28 and 288,279.88

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Solution

The fourth proportional to 1,129,728.13, 1,694,591.28 and 288,279.88 is: 432,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,728.13 : 1,694,591.28 = 288,279.88 : x
  2. Step 2: Convert to fraction form
    1,129,728.13/1,694,591.28 = 288,279.88/x
  3. Step 3: Cross multiply
    1,129,728.13x = 1,694,591.28 × 288,279.88
  4. Step 4: Simplify right side
    1,129,728.13x = 488,516,566,610.97
  5. Step 5: Solve for x
    x = 488,516,566,610.97/1,129,728.13
  6. Step 6: Final answer
    x = 432,419.58

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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.