Home / 1,200,761.33-1,798,255.94-686,868.46

Finding the Fourth Proportional to 1,200,761.33, 1,798,255.94 and 686,868.46

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Solution

The fourth proportional to 1,200,761.33, 1,798,255.94 and 686,868.46 is: 1,028,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,761.33 : 1,798,255.94 = 686,868.46 : x
  2. Step 2: Convert to fraction form
    1,200,761.33/1,798,255.94 = 686,868.46/x
  3. Step 3: Cross multiply
    1,200,761.33x = 1,798,255.94 × 686,868.46
  4. Step 4: Simplify right side
    1,200,761.33x = 1,235,165,275,768.03
  5. Step 5: Solve for x
    x = 1,235,165,275,768.03/1,200,761.33
  6. Step 6: Final answer
    x = 1,028,651.78

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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.