Home / 492,982.21-680,346.56-278,043.85

Finding the Fourth Proportional to 492,982.21, 680,346.56 and 278,043.85

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Solution

The fourth proportional to 492,982.21, 680,346.56 and 278,043.85 is: 383,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,982.21 : 680,346.56 = 278,043.85 : x
  2. Step 2: Convert to fraction form
    492,982.21/680,346.56 = 278,043.85/x
  3. Step 3: Cross multiply
    492,982.21x = 680,346.56 × 278,043.85
  4. Step 4: Simplify right side
    492,982.21x = 189,166,172,084.70
  5. Step 5: Solve for x
    x = 189,166,172,084.70/492,982.21
  6. Step 6: Final answer
    x = 383,718.05

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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.