Home / 1,091,900.40-1,639,600.20-825,961.20

Finding the Fourth Proportional to 1,091,900.40, 1,639,600.20 and 825,961.20

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Solution

The fourth proportional to 1,091,900.40, 1,639,600.20 and 825,961.20 is: 1,240,265.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,900.40 : 1,639,600.20 = 825,961.20 : x
  2. Step 2: Convert to fraction form
    1,091,900.40/1,639,600.20 = 825,961.20/x
  3. Step 3: Cross multiply
    1,091,900.40x = 1,639,600.20 × 825,961.20
  4. Step 4: Simplify right side
    1,091,900.40x = 1,354,246,148,712.24
  5. Step 5: Solve for x
    x = 1,354,246,148,712.24/1,091,900.40
  6. Step 6: Final answer
    x = 1,240,265.27

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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.