Home / 814,781.52-1,222,031.34-215,751.29

Finding the Fourth Proportional to 814,781.52, 1,222,031.34 and 215,751.29

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Solution

The fourth proportional to 814,781.52, 1,222,031.34 and 215,751.29 is: 323,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,781.52 : 1,222,031.34 = 215,751.29 : x
  2. Step 2: Convert to fraction form
    814,781.52/1,222,031.34 = 215,751.29/x
  3. Step 3: Cross multiply
    814,781.52x = 1,222,031.34 × 215,751.29
  4. Step 4: Simplify right side
    814,781.52x = 263,654,831,915.27
  5. Step 5: Solve for x
    x = 263,654,831,915.27/814,781.52
  6. Step 6: Final answer
    x = 323,589.61

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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.