Home / 1,189,078.57-1,782,859.29-783,803.17

Finding the Fourth Proportional to 1,189,078.57, 1,782,859.29 and 783,803.17

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Solution

The fourth proportional to 1,189,078.57, 1,782,859.29 and 783,803.17 is: 1,175,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,078.57 : 1,782,859.29 = 783,803.17 : x
  2. Step 2: Convert to fraction form
    1,189,078.57/1,782,859.29 = 783,803.17/x
  3. Step 3: Cross multiply
    1,189,078.57x = 1,782,859.29 × 783,803.17
  4. Step 4: Simplify right side
    1,189,078.57x = 1,397,410,763,165.95
  5. Step 5: Solve for x
    x = 1,397,410,763,165.95/1,189,078.57
  6. Step 6: Final answer
    x = 1,175,204.73

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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.