Home / 667,538.82-1,001,531.79-218,280.42

Finding the Fourth Proportional to 667,538.82, 1,001,531.79 and 218,280.42

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Solution

The fourth proportional to 667,538.82, 1,001,531.79 and 218,280.42 is: 327,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,538.82 : 1,001,531.79 = 218,280.42 : x
  2. Step 2: Convert to fraction form
    667,538.82/1,001,531.79 = 218,280.42/x
  3. Step 3: Cross multiply
    667,538.82x = 1,001,531.79 × 218,280.42
  4. Step 4: Simplify right side
    667,538.82x = 218,614,779,764.55
  5. Step 5: Solve for x
    x = 218,614,779,764.55/667,538.82
  6. Step 6: Final answer
    x = 327,493.73

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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.