Home / 693,761.11-1,040,753.95-213,876.71

Finding the Fourth Proportional to 693,761.11, 1,040,753.95 and 213,876.71

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Solution

The fourth proportional to 693,761.11, 1,040,753.95 and 213,876.71 is: 320,849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,761.11 : 1,040,753.95 = 213,876.71 : x
  2. Step 2: Convert to fraction form
    693,761.11/1,040,753.95 = 213,876.71/x
  3. Step 3: Cross multiply
    693,761.11x = 1,040,753.95 × 213,876.71
  4. Step 4: Simplify right side
    693,761.11x = 222,593,030,745.51
  5. Step 5: Solve for x
    x = 222,593,030,745.51/693,761.11
  6. Step 6: Final answer
    x = 320,849.68

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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.