Home / 1,238,939.28-1,858,187.07-328,127.85

Finding the Fourth Proportional to 1,238,939.28, 1,858,187.07 and 328,127.85

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Solution

The fourth proportional to 1,238,939.28, 1,858,187.07 and 328,127.85 is: 492,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,939.28 : 1,858,187.07 = 328,127.85 : x
  2. Step 2: Convert to fraction form
    1,238,939.28/1,858,187.07 = 328,127.85/x
  3. Step 3: Cross multiply
    1,238,939.28x = 1,858,187.07 × 328,127.85
  4. Step 4: Simplify right side
    1,238,939.28x = 609,722,928,176.90
  5. Step 5: Solve for x
    x = 609,722,928,176.90/1,238,939.28
  6. Step 6: Final answer
    x = 492,133.02

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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.