Home / 814,799-1,222,231.62-388,115.48

Finding the Fourth Proportional to 814,799, 1,222,231.62 and 388,115.48

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Solution

The fourth proportional to 814,799, 1,222,231.62 and 388,115.48 is: 582,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,799 : 1,222,231.62 = 388,115.48 : x
  2. Step 2: Convert to fraction form
    814,799/1,222,231.62 = 388,115.48/x
  3. Step 3: Cross multiply
    814,799x = 1,222,231.62 × 388,115.48
  4. Step 4: Simplify right side
    814,799x = 474,367,011,867.48
  5. Step 5: Solve for x
    x = 474,367,011,867.48/814,799
  6. Step 6: Final answer
    x = 582,189.00

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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.