Home / 664,287.38-996,589.25-215,008.33

Finding the Fourth Proportional to 664,287.38, 996,589.25 and 215,008.33

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Solution

The fourth proportional to 664,287.38, 996,589.25 and 215,008.33 is: 322,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,287.38 : 996,589.25 = 215,008.33 : x
  2. Step 2: Convert to fraction form
    664,287.38/996,589.25 = 215,008.33/x
  3. Step 3: Cross multiply
    664,287.38x = 996,589.25 × 215,008.33
  4. Step 4: Simplify right side
    664,287.38x = 214,274,990,656.25
  5. Step 5: Solve for x
    x = 214,274,990,656.25/664,287.38
  6. Step 6: Final answer
    x = 322,563.69

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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.