Home / 2,131,540.20-3,196,143.90-867,940.20

Finding the Fourth Proportional to 2,131,540.20, 3,196,143.90 and 867,940.20

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Solution

The fourth proportional to 2,131,540.20, 3,196,143.90 and 867,940.20 is: 1,301,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,540.20 : 3,196,143.90 = 867,940.20 : x
  2. Step 2: Convert to fraction form
    2,131,540.20/3,196,143.90 = 867,940.20/x
  3. Step 3: Cross multiply
    2,131,540.20x = 3,196,143.90 × 867,940.20
  4. Step 4: Simplify right side
    2,131,540.20x = 2,774,061,775,794.78
  5. Step 5: Solve for x
    x = 2,774,061,775,794.78/2,131,540.20
  6. Step 6: Final answer
    x = 1,301,435.35

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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.