Home / 819,806.38-1,229,867.18-314,327.94

Finding the Fourth Proportional to 819,806.38, 1,229,867.18 and 314,327.94

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Solution

The fourth proportional to 819,806.38, 1,229,867.18 and 314,327.94 is: 471,552.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,806.38 : 1,229,867.18 = 314,327.94 : x
  2. Step 2: Convert to fraction form
    819,806.38/1,229,867.18 = 314,327.94/x
  3. Step 3: Cross multiply
    819,806.38x = 1,229,867.18 × 314,327.94
  4. Step 4: Simplify right side
    819,806.38x = 386,581,612,158.10
  5. Step 5: Solve for x
    x = 386,581,612,158.10/819,806.38
  6. Step 6: Final answer
    x = 471,552.34

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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.