Home / 667,512.30-1,001,377.65-218,102.70

Finding the Fourth Proportional to 667,512.30, 1,001,377.65 and 218,102.70

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Solution

The fourth proportional to 667,512.30, 1,001,377.65 and 218,102.70 is: 327,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,512.30 : 1,001,377.65 = 218,102.70 : x
  2. Step 2: Convert to fraction form
    667,512.30/1,001,377.65 = 218,102.70/x
  3. Step 3: Cross multiply
    667,512.30x = 1,001,377.65 × 218,102.70
  4. Step 4: Simplify right side
    667,512.30x = 218,403,169,184.66
  5. Step 5: Solve for x
    x = 218,403,169,184.66/667,512.30
  6. Step 6: Final answer
    x = 327,189.73

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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.