Home / 998,108.50-1,497,591.78-324,396.40

Finding the Fourth Proportional to 998,108.50, 1,497,591.78 and 324,396.40

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Solution

The fourth proportional to 998,108.50, 1,497,591.78 and 324,396.40 is: 486,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,108.50 : 1,497,591.78 = 324,396.40 : x
  2. Step 2: Convert to fraction form
    998,108.50/1,497,591.78 = 324,396.40/x
  3. Step 3: Cross multiply
    998,108.50x = 1,497,591.78 × 324,396.40
  4. Step 4: Simplify right side
    998,108.50x = 485,813,382,101.59
  5. Step 5: Solve for x
    x = 485,813,382,101.59/998,108.50
  6. Step 6: Final answer
    x = 486,734.04

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Double scale
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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.