Home / 668,760.54-1,003,129.19-269,391.11

Finding the Fourth Proportional to 668,760.54, 1,003,129.19 and 269,391.11

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Solution

The fourth proportional to 668,760.54, 1,003,129.19 and 269,391.11 is: 404,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,760.54 : 1,003,129.19 = 269,391.11 : x
  2. Step 2: Convert to fraction form
    668,760.54/1,003,129.19 = 269,391.11/x
  3. Step 3: Cross multiply
    668,760.54x = 1,003,129.19 × 269,391.11
  4. Step 4: Simplify right side
    668,760.54x = 270,234,080,951.86
  5. Step 5: Solve for x
    x = 270,234,080,951.86/668,760.54
  6. Step 6: Final answer
    x = 404,081.98

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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.