Home / 2,628,455.20-3,942,812.40-1,368,743.20

Finding the Fourth Proportional to 2,628,455.20, 3,942,812.40 and 1,368,743.20

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Solution

The fourth proportional to 2,628,455.20, 3,942,812.40 and 1,368,743.20 is: 2,053,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,455.20 : 3,942,812.40 = 1,368,743.20 : x
  2. Step 2: Convert to fraction form
    2,628,455.20/3,942,812.40 = 1,368,743.20/x
  3. Step 3: Cross multiply
    2,628,455.20x = 3,942,812.40 × 1,368,743.20
  4. Step 4: Simplify right side
    2,628,455.20x = 5,396,697,661,375.68
  5. Step 5: Solve for x
    x = 5,396,697,661,375.68/2,628,455.20
  6. Step 6: Final answer
    x = 2,053,182.29

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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.