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Finding the Fourth Proportional to 796.82, 1,194.92 and 385.84

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Solution

The fourth proportional to 796.82, 1,194.92 and 385.84 is: 578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.82 : 1,194.92 = 385.84 : x
  2. Step 2: Convert to fraction form
    796.82/1,194.92 = 385.84/x
  3. Step 3: Cross multiply
    796.82x = 1,194.92 × 385.84
  4. Step 4: Simplify right side
    796.82x = 461,040.03
  5. Step 5: Solve for x
    x = 461,040.03/796.82
  6. Step 6: Final answer
    x = 578.60

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1.5x scale

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.