Home / 2,628,399.20-3,942,728.40-1,368,687.20

Finding the Fourth Proportional to 2,628,399.20, 3,942,728.40 and 1,368,687.20

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Solution

The fourth proportional to 2,628,399.20, 3,942,728.40 and 1,368,687.20 is: 2,053,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,399.20 : 3,942,728.40 = 1,368,687.20 : x
  2. Step 2: Convert to fraction form
    2,628,399.20/3,942,728.40 = 1,368,687.20/x
  3. Step 3: Cross multiply
    2,628,399.20x = 3,942,728.40 × 1,368,687.20
  4. Step 4: Simplify right side
    2,628,399.20x = 5,396,361,894,156.48
  5. Step 5: Solve for x
    x = 5,396,361,894,156.48/2,628,399.20
  6. Step 6: Final answer
    x = 2,053,098.29

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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.