Home / 693,732.53-1,040,778.33-213,949.72

Finding the Fourth Proportional to 693,732.53, 1,040,778.33 and 213,949.72

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Solution

The fourth proportional to 693,732.53, 1,040,778.33 and 213,949.72 is: 320,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,732.53 : 1,040,778.33 = 213,949.72 : x
  2. Step 2: Convert to fraction form
    693,732.53/1,040,778.33 = 213,949.72/x
  3. Step 3: Cross multiply
    693,732.53x = 1,040,778.33 × 213,949.72
  4. Step 4: Simplify right side
    693,732.53x = 222,674,229,683.62
  5. Step 5: Solve for x
    x = 222,674,229,683.62/693,732.53
  6. Step 6: Final answer
    x = 320,979.95

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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.