Home / 2,131,445.80-3,194,447.10-867,845.80

Finding the Fourth Proportional to 2,131,445.80, 3,194,447.10 and 867,845.80

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Solution

The fourth proportional to 2,131,445.80, 3,194,447.10 and 867,845.80 is: 1,300,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,445.80 : 3,194,447.10 = 867,845.80 : x
  2. Step 2: Convert to fraction form
    2,131,445.80/3,194,447.10 = 867,845.80/x
  3. Step 3: Cross multiply
    2,131,445.80x = 3,194,447.10 × 867,845.80
  4. Step 4: Simplify right side
    2,131,445.80x = 2,772,287,499,057.18
  5. Step 5: Solve for x
    x = 2,772,287,499,057.18/2,131,445.80
  6. Step 6: Final answer
    x = 1,300,660.57

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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.