Home / 3,109,205.32-4,663,974.84-979,456.12

Finding the Fourth Proportional to 3,109,205.32, 4,663,974.84 and 979,456.12

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Solution

The fourth proportional to 3,109,205.32, 4,663,974.84 and 979,456.12 is: 1,469,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,205.32 : 4,663,974.84 = 979,456.12 : x
  2. Step 2: Convert to fraction form
    3,109,205.32/4,663,974.84 = 979,456.12/x
  3. Step 3: Cross multiply
    3,109,205.32x = 4,663,974.84 × 979,456.12
  4. Step 4: Simplify right side
    3,109,205.32x = 4,568,158,700,564.02
  5. Step 5: Solve for x
    x = 4,568,158,700,564.02/3,109,205.32
  6. Step 6: Final answer
    x = 1,469,236.74

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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.