Home / 667,521.05-1,001,281.55-443,319.39

Finding the Fourth Proportional to 667,521.05, 1,001,281.55 and 443,319.39

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Solution

The fourth proportional to 667,521.05, 1,001,281.55 and 443,319.39 is: 664,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,521.05 : 1,001,281.55 = 443,319.39 : x
  2. Step 2: Convert to fraction form
    667,521.05/1,001,281.55 = 443,319.39/x
  3. Step 3: Cross multiply
    667,521.05x = 1,001,281.55 × 443,319.39
  4. Step 4: Simplify right side
    667,521.05x = 443,887,523,747.66
  5. Step 5: Solve for x
    x = 443,887,523,747.66/667,521.05
  6. Step 6: Final answer
    x = 664,979.07

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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.