Home / 492,922.56-680,227.92-278,132.52

Finding the Fourth Proportional to 492,922.56, 680,227.92 and 278,132.52

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Solution

The fourth proportional to 492,922.56, 680,227.92 and 278,132.52 is: 383,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,922.56 : 680,227.92 = 278,132.52 : x
  2. Step 2: Convert to fraction form
    492,922.56/680,227.92 = 278,132.52/x
  3. Step 3: Cross multiply
    492,922.56x = 680,227.92 × 278,132.52
  4. Step 4: Simplify right side
    492,922.56x = 189,193,505,563.96
  5. Step 5: Solve for x
    x = 189,193,505,563.96/492,922.56
  6. Step 6: Final answer
    x = 383,819.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.