Home / 664,394.29-996,749.80-215,115.28

Finding the Fourth Proportional to 664,394.29, 996,749.80 and 215,115.28

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Solution

The fourth proportional to 664,394.29, 996,749.80 and 215,115.28 is: 322,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,394.29 : 996,749.80 = 215,115.28 : x
  2. Step 2: Convert to fraction form
    664,394.29/996,749.80 = 215,115.28/x
  3. Step 3: Cross multiply
    664,394.29x = 996,749.80 × 215,115.28
  4. Step 4: Simplify right side
    664,394.29x = 214,416,109,287.28
  5. Step 5: Solve for x
    x = 214,416,109,287.28/664,394.29
  6. Step 6: Final answer
    x = 322,724.19

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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.