Home / 667,914.38-1,002,200.13-312,867.02

Finding the Fourth Proportional to 667,914.38, 1,002,200.13 and 312,867.02

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Solution

The fourth proportional to 667,914.38, 1,002,200.13 and 312,867.02 is: 469,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,914.38 : 1,002,200.13 = 312,867.02 : x
  2. Step 2: Convert to fraction form
    667,914.38/1,002,200.13 = 312,867.02/x
  3. Step 3: Cross multiply
    667,914.38x = 1,002,200.13 × 312,867.02
  4. Step 4: Simplify right side
    667,914.38x = 313,555,368,116.71
  5. Step 5: Solve for x
    x = 313,555,368,116.71/667,914.38
  6. Step 6: Final answer
    x = 469,454.44

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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.