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Finding the Fourth Proportional to 490,235.41, 676,559.39 and 275,375.65

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Solution

The fourth proportional to 490,235.41, 676,559.39 and 275,375.65 is: 380,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,235.41 : 676,559.39 = 275,375.65 : x
  2. Step 2: Convert to fraction form
    490,235.41/676,559.39 = 275,375.65/x
  3. Step 3: Cross multiply
    490,235.41x = 676,559.39 × 275,375.65
  4. Step 4: Simplify right side
    490,235.41x = 186,307,979,985.13
  5. Step 5: Solve for x
    x = 186,307,979,985.13/490,235.41
  6. Step 6: Final answer
    x = 380,037.78

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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.