Home / 1,396,352.94-1,928,103.39-1,138,270.38

Finding the Fourth Proportional to 1,396,352.94, 1,928,103.39 and 1,138,270.38

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Solution

The fourth proportional to 1,396,352.94, 1,928,103.39 and 1,138,270.38 is: 1,571,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,352.94 : 1,928,103.39 = 1,138,270.38 : x
  2. Step 2: Convert to fraction form
    1,396,352.94/1,928,103.39 = 1,138,270.38/x
  3. Step 3: Cross multiply
    1,396,352.94x = 1,928,103.39 × 1,138,270.38
  4. Step 4: Simplify right side
    1,396,352.94x = 2,194,702,978,414.59
  5. Step 5: Solve for x
    x = 2,194,702,978,414.59/1,396,352.94
  6. Step 6: Final answer
    x = 1,571,739.43

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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.