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Finding the Fourth Proportional to 490,965.54, 677,472.92 and 273,122.72

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Solution

The fourth proportional to 490,965.54, 677,472.92 and 273,122.72 is: 376,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,965.54 : 677,472.92 = 273,122.72 : x
  2. Step 2: Convert to fraction form
    490,965.54/677,472.92 = 273,122.72/x
  3. Step 3: Cross multiply
    490,965.54x = 677,472.92 × 273,122.72
  4. Step 4: Simplify right side
    490,965.54x = 185,033,245,619.20
  5. Step 5: Solve for x
    x = 185,033,245,619.20/490,965.54
  6. Step 6: Final answer
    x = 376,876.24

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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.