Home / 1,121,778.52-1,548,033.19-686,163.82

Finding the Fourth Proportional to 1,121,778.52, 1,548,033.19 and 686,163.82

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Solution

The fourth proportional to 1,121,778.52, 1,548,033.19 and 686,163.82 is: 946,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,778.52 : 1,548,033.19 = 686,163.82 : x
  2. Step 2: Convert to fraction form
    1,121,778.52/1,548,033.19 = 686,163.82/x
  3. Step 3: Cross multiply
    1,121,778.52x = 1,548,033.19 × 686,163.82
  4. Step 4: Simplify right side
    1,121,778.52x = 1,062,204,355,966.20
  5. Step 5: Solve for x
    x = 1,062,204,355,966.20/1,121,778.52
  6. Step 6: Final answer
    x = 946,893.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.