Home / 1,324,819.20-1,987,228.80-1,192,108.80

Finding the Fourth Proportional to 1,324,819.20, 1,987,228.80 and 1,192,108.80

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Solution

The fourth proportional to 1,324,819.20, 1,987,228.80 and 1,192,108.80 is: 1,788,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,819.20 : 1,987,228.80 = 1,192,108.80 : x
  2. Step 2: Convert to fraction form
    1,324,819.20/1,987,228.80 = 1,192,108.80/x
  3. Step 3: Cross multiply
    1,324,819.20x = 1,987,228.80 × 1,192,108.80
  4. Step 4: Simplify right side
    1,324,819.20x = 2,368,992,940,093.44
  5. Step 5: Solve for x
    x = 2,368,992,940,093.44/1,324,819.20
  6. Step 6: Final answer
    x = 1,788,163.20

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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.