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Finding the Fourth Proportional to 491,249.50, 677,919.52 and 273,454.72

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Solution

The fourth proportional to 491,249.50, 677,919.52 and 273,454.72 is: 377,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,249.50 : 677,919.52 = 273,454.72 : x
  2. Step 2: Convert to fraction form
    491,249.50/677,919.52 = 273,454.72/x
  3. Step 3: Cross multiply
    491,249.50x = 677,919.52 × 273,454.72
  4. Step 4: Simplify right side
    491,249.50x = 185,380,292,524.13
  5. Step 5: Solve for x
    x = 185,380,292,524.13/491,249.50
  6. Step 6: Final answer
    x = 377,364.85

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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.