Home / 538,276.80-806,529.60-327,279.36

Finding the Fourth Proportional to 538,276.80, 806,529.60 and 327,279.36

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Solution

The fourth proportional to 538,276.80, 806,529.60 and 327,279.36 is: 490,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,276.80 : 806,529.60 = 327,279.36 : x
  2. Step 2: Convert to fraction form
    538,276.80/806,529.60 = 327,279.36/x
  3. Step 3: Cross multiply
    538,276.80x = 806,529.60 × 327,279.36
  4. Step 4: Simplify right side
    538,276.80x = 263,960,491,309.06
  5. Step 5: Solve for x
    x = 263,960,491,309.06/538,276.80
  6. Step 6: Final answer
    x = 490,380.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.