Home / 667,491.30-1,001,346.15-218,081.70

Finding the Fourth Proportional to 667,491.30, 1,001,346.15 and 218,081.70

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Solution

The fourth proportional to 667,491.30, 1,001,346.15 and 218,081.70 is: 327,158.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,491.30 : 1,001,346.15 = 218,081.70 : x
  2. Step 2: Convert to fraction form
    667,491.30/1,001,346.15 = 218,081.70/x
  3. Step 3: Cross multiply
    667,491.30x = 1,001,346.15 × 218,081.70
  4. Step 4: Simplify right side
    667,491.30x = 218,375,270,680.46
  5. Step 5: Solve for x
    x = 218,375,270,680.46/667,491.30
  6. Step 6: Final answer
    x = 327,158.23

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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.