Home / 1,189,044.52-1,782,808.14-783,768.85

Finding the Fourth Proportional to 1,189,044.52, 1,782,808.14 and 783,768.85

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Solution

The fourth proportional to 1,189,044.52, 1,782,808.14 and 783,768.85 is: 1,175,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,044.52 : 1,782,808.14 = 783,768.85 : x
  2. Step 2: Convert to fraction form
    1,189,044.52/1,782,808.14 = 783,768.85/x
  3. Step 3: Cross multiply
    1,189,044.52x = 1,782,808.14 × 783,768.85
  4. Step 4: Simplify right side
    1,189,044.52x = 1,397,309,485,658.44
  5. Step 5: Solve for x
    x = 1,397,309,485,658.44/1,189,044.52
  6. Step 6: Final answer
    x = 1,175,153.21

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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.