Home / 685,137.44-1,027,115.64-329,662.46

Finding the Fourth Proportional to 685,137.44, 1,027,115.64 and 329,662.46

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Solution

The fourth proportional to 685,137.44, 1,027,115.64 and 329,662.46 is: 494,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,137.44 : 1,027,115.64 = 329,662.46 : x
  2. Step 2: Convert to fraction form
    685,137.44/1,027,115.64 = 329,662.46/x
  3. Step 3: Cross multiply
    685,137.44x = 1,027,115.64 × 329,662.46
  4. Step 4: Simplify right side
    685,137.44x = 338,601,468,586.87
  5. Step 5: Solve for x
    x = 338,601,468,586.87/685,137.44
  6. Step 6: Final answer
    x = 494,209.55

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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.