Home / 1,163,105.20-1,741,858.36-787,990.96

Finding the Fourth Proportional to 1,163,105.20, 1,741,858.36 and 787,990.96

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Solution

The fourth proportional to 1,163,105.20, 1,741,858.36 and 787,990.96 is: 1,180,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,105.20 : 1,741,858.36 = 787,990.96 : x
  2. Step 2: Convert to fraction form
    1,163,105.20/1,741,858.36 = 787,990.96/x
  3. Step 3: Cross multiply
    1,163,105.20x = 1,741,858.36 × 787,990.96
  4. Step 4: Simplify right side
    1,163,105.20x = 1,372,568,641,280.43
  5. Step 5: Solve for x
    x = 1,372,568,641,280.43/1,163,105.20
  6. Step 6: Final answer
    x = 1,180,089.85

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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.