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Finding the Fourth Proportional to 557,249.22, 768,992.94 and 327,831.30

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Solution

The fourth proportional to 557,249.22, 768,992.94 and 327,831.30 is: 452,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,249.22 : 768,992.94 = 327,831.30 : x
  2. Step 2: Convert to fraction form
    557,249.22/768,992.94 = 327,831.30/x
  3. Step 3: Cross multiply
    557,249.22x = 768,992.94 × 327,831.30
  4. Step 4: Simplify right side
    557,249.22x = 252,099,955,211.02
  5. Step 5: Solve for x
    x = 252,099,955,211.02/557,249.22
  6. Step 6: Final answer
    x = 452,400.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.