Home / 2,661,912.31-3,993,540.26-742,821.91

Finding the Fourth Proportional to 2,661,912.31, 3,993,540.26 and 742,821.91

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Solution

The fourth proportional to 2,661,912.31, 3,993,540.26 and 742,821.91 is: 1,114,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,912.31 : 3,993,540.26 = 742,821.91 : x
  2. Step 2: Convert to fraction form
    2,661,912.31/3,993,540.26 = 742,821.91/x
  3. Step 3: Cross multiply
    2,661,912.31x = 3,993,540.26 × 742,821.91
  4. Step 4: Simplify right side
    2,661,912.31x = 2,966,489,203,595.10
  5. Step 5: Solve for x
    x = 2,966,489,203,595.10/2,661,912.31
  6. Step 6: Final answer
    x = 1,114,420.33

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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.