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Finding the Fourth Proportional to 796.60, 1,099.37 and 442.54

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Solution

The fourth proportional to 796.60, 1,099.37 and 442.54 is: 610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.60 : 1,099.37 = 442.54 : x
  2. Step 2: Convert to fraction form
    796.60/1,099.37 = 442.54/x
  3. Step 3: Cross multiply
    796.60x = 1,099.37 × 442.54
  4. Step 4: Simplify right side
    796.60x = 486,512.99
  5. Step 5: Solve for x
    x = 486,512.99/796.60
  6. Step 6: Final answer
    x = 610.74

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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.