Home / 677,471.90-1,015,321.97-277,644.56

Finding the Fourth Proportional to 677,471.90, 1,015,321.97 and 277,644.56

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Solution

The fourth proportional to 677,471.90, 1,015,321.97 and 277,644.56 is: 416,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,471.90 : 1,015,321.97 = 277,644.56 : x
  2. Step 2: Convert to fraction form
    677,471.90/1,015,321.97 = 277,644.56/x
  3. Step 3: Cross multiply
    677,471.90x = 1,015,321.97 × 277,644.56
  4. Step 4: Simplify right side
    677,471.90x = 281,898,615,154.15
  5. Step 5: Solve for x
    x = 281,898,615,154.15/677,471.90
  6. Step 6: Final answer
    x = 416,103.78

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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.