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Finding the Fourth Proportional to 485,494.56, 726,375.60 and 295,920.54

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Solution

The fourth proportional to 485,494.56, 726,375.60 and 295,920.54 is: 442,743.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,494.56 : 726,375.60 = 295,920.54 : x
  2. Step 2: Convert to fraction form
    485,494.56/726,375.60 = 295,920.54/x
  3. Step 3: Cross multiply
    485,494.56x = 726,375.60 × 295,920.54
  4. Step 4: Simplify right side
    485,494.56x = 214,949,459,794.82
  5. Step 5: Solve for x
    x = 214,949,459,794.82/485,494.56
  6. Step 6: Final answer
    x = 442,743.29

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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.