Home / 801,115.25-1,105,540.45-438,539.34

Finding the Fourth Proportional to 801,115.25, 1,105,540.45 and 438,539.34

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Solution

The fourth proportional to 801,115.25, 1,105,540.45 and 438,539.34 is: 605,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,115.25 : 1,105,540.45 = 438,539.34 : x
  2. Step 2: Convert to fraction form
    801,115.25/1,105,540.45 = 438,539.34/x
  3. Step 3: Cross multiply
    801,115.25x = 1,105,540.45 × 438,539.34
  4. Step 4: Simplify right side
    801,115.25x = 484,822,978,189.96
  5. Step 5: Solve for x
    x = 484,822,978,189.96/801,115.25
  6. Step 6: Final answer
    x = 605,185.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.