Home / 1,189,043.52-1,782,806.64-783,767.85

Finding the Fourth Proportional to 1,189,043.52, 1,782,806.64 and 783,767.85

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Solution

The fourth proportional to 1,189,043.52, 1,782,806.64 and 783,767.85 is: 1,175,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,043.52 : 1,782,806.64 = 783,767.85 : x
  2. Step 2: Convert to fraction form
    1,189,043.52/1,782,806.64 = 783,767.85/x
  3. Step 3: Cross multiply
    1,189,043.52x = 1,782,806.64 × 783,767.85
  4. Step 4: Simplify right side
    1,189,043.52x = 1,397,306,527,198.52
  5. Step 5: Solve for x
    x = 1,397,306,527,198.52/1,189,043.52
  6. Step 6: Final answer
    x = 1,175,151.71

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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.