Home / 2,142,517.87-3,211,517.27-702,825.31

Finding the Fourth Proportional to 2,142,517.87, 3,211,517.27 and 702,825.31

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Solution

The fourth proportional to 2,142,517.87, 3,211,517.27 and 702,825.31 is: 1,053,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,517.87 : 3,211,517.27 = 702,825.31 : x
  2. Step 2: Convert to fraction form
    2,142,517.87/3,211,517.27 = 702,825.31/x
  3. Step 3: Cross multiply
    2,142,517.87x = 3,211,517.27 × 702,825.31
  4. Step 4: Simplify right side
    2,142,517.87x = 2,257,135,617,343.98
  5. Step 5: Solve for x
    x = 2,257,135,617,343.98/2,142,517.87
  6. Step 6: Final answer
    x = 1,053,496.75

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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.