Home / 1,990,785.60-2,747,165.76-1,131,226.56

Finding the Fourth Proportional to 1,990,785.60, 2,747,165.76 and 1,131,226.56

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Solution

The fourth proportional to 1,990,785.60, 2,747,165.76 and 1,131,226.56 is: 1,561,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,785.60 : 2,747,165.76 = 1,131,226.56 : x
  2. Step 2: Convert to fraction form
    1,990,785.60/2,747,165.76 = 1,131,226.56/x
  3. Step 3: Cross multiply
    1,990,785.60x = 2,747,165.76 × 1,131,226.56
  4. Step 4: Simplify right side
    1,990,785.60x = 3,107,666,872,434.59
  5. Step 5: Solve for x
    x = 3,107,666,872,434.59/1,990,785.60
  6. Step 6: Final answer
    x = 1,561,025.39

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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.