Home / 693,754.43-1,040,743.82-213,869.95

Finding the Fourth Proportional to 693,754.43, 1,040,743.82 and 213,869.95

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Solution

The fourth proportional to 693,754.43, 1,040,743.82 and 213,869.95 is: 320,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,754.43 : 1,040,743.82 = 213,869.95 : x
  2. Step 2: Convert to fraction form
    693,754.43/1,040,743.82 = 213,869.95/x
  3. Step 3: Cross multiply
    693,754.43x = 1,040,743.82 × 213,869.95
  4. Step 4: Simplify right side
    693,754.43x = 222,583,826,679.02
  5. Step 5: Solve for x
    x = 222,583,826,679.02/693,754.43
  6. Step 6: Final answer
    x = 320,839.51

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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.