Home / 814,658.54-1,222,047.76-215,615.64

Finding the Fourth Proportional to 814,658.54, 1,222,047.76 and 215,615.64

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Solution

The fourth proportional to 814,658.54, 1,222,047.76 and 215,615.64 is: 323,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,658.54 : 1,222,047.76 = 215,615.64 : x
  2. Step 2: Convert to fraction form
    814,658.54/1,222,047.76 = 215,615.64/x
  3. Step 3: Cross multiply
    814,658.54x = 1,222,047.76 × 215,615.64
  4. Step 4: Simplify right side
    814,658.54x = 263,492,609,882.97
  5. Step 5: Solve for x
    x = 263,492,609,882.97/814,658.54
  6. Step 6: Final answer
    x = 323,439.33

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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.