Home / 1,215,003.40-1,822,505.10-505,540.60

Finding the Fourth Proportional to 1,215,003.40, 1,822,505.10 and 505,540.60

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Solution

The fourth proportional to 1,215,003.40, 1,822,505.10 and 505,540.60 is: 758,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,003.40 : 1,822,505.10 = 505,540.60 : x
  2. Step 2: Convert to fraction form
    1,215,003.40/1,822,505.10 = 505,540.60/x
  3. Step 3: Cross multiply
    1,215,003.40x = 1,822,505.10 × 505,540.60
  4. Step 4: Simplify right side
    1,215,003.40x = 921,350,321,757.06
  5. Step 5: Solve for x
    x = 921,350,321,757.06/1,215,003.40
  6. Step 6: Final answer
    x = 758,310.90

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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.