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Finding the Fourth Proportional to 490,067.44, 676,309.44 and 275,245.36

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Solution

The fourth proportional to 490,067.44, 676,309.44 and 275,245.36 is: 379,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,067.44 : 676,309.44 = 275,245.36 : x
  2. Step 2: Convert to fraction form
    490,067.44/676,309.44 = 275,245.36/x
  3. Step 3: Cross multiply
    490,067.44x = 676,309.44 × 275,245.36
  4. Step 4: Simplify right side
    490,067.44x = 186,151,035,284.20
  5. Step 5: Solve for x
    x = 186,151,035,284.20/490,067.44
  6. Step 6: Final answer
    x = 379,847.79

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1.5x scale

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.