Home / 591,217.11-815,879.57-319,284.97

Finding the Fourth Proportional to 591,217.11, 815,879.57 and 319,284.97

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Solution

The fourth proportional to 591,217.11, 815,879.57 and 319,284.97 is: 440,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,217.11 : 815,879.57 = 319,284.97 : x
  2. Step 2: Convert to fraction form
    591,217.11/815,879.57 = 319,284.97/x
  3. Step 3: Cross multiply
    591,217.11x = 815,879.57 × 319,284.97
  4. Step 4: Simplify right side
    591,217.11x = 260,498,084,031.06
  5. Step 5: Solve for x
    x = 260,498,084,031.06/591,217.11
  6. Step 6: Final answer
    x = 440,613.24

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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.