Home / 667,149.31-1,000,785.48-217,872.53

Finding the Fourth Proportional to 667,149.31, 1,000,785.48 and 217,872.53

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Solution

The fourth proportional to 667,149.31, 1,000,785.48 and 217,872.53 is: 326,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,149.31 : 1,000,785.48 = 217,872.53 : x
  2. Step 2: Convert to fraction form
    667,149.31/1,000,785.48 = 217,872.53/x
  3. Step 3: Cross multiply
    667,149.31x = 1,000,785.48 × 217,872.53
  4. Step 4: Simplify right side
    667,149.31x = 218,043,667,016.83
  5. Step 5: Solve for x
    x = 218,043,667,016.83/667,149.31
  6. Step 6: Final answer
    x = 326,828.89

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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.