Home / 548,279.28-821,789.15-343,206.05

Finding the Fourth Proportional to 548,279.28, 821,789.15 and 343,206.05

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Solution

The fourth proportional to 548,279.28, 821,789.15 and 343,206.05 is: 514,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,279.28 : 821,789.15 = 343,206.05 : x
  2. Step 2: Convert to fraction form
    548,279.28/821,789.15 = 343,206.05/x
  3. Step 3: Cross multiply
    548,279.28x = 821,789.15 × 343,206.05
  4. Step 4: Simplify right side
    548,279.28x = 282,043,002,279.38
  5. Step 5: Solve for x
    x = 282,043,002,279.38/548,279.28
  6. Step 6: Final answer
    x = 514,414.85

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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.