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Finding the Fourth Proportional to 796.56, 1,194.86 and 385.62

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Solution

The fourth proportional to 796.56, 1,194.86 and 385.62 is: 578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.56 : 1,194.86 = 385.62 : x
  2. Step 2: Convert to fraction form
    796.56/1,194.86 = 385.62/x
  3. Step 3: Cross multiply
    796.56x = 1,194.86 × 385.62
  4. Step 4: Simplify right side
    796.56x = 460,755.50
  5. Step 5: Solve for x
    x = 460,755.50/796.56
  6. Step 6: Final answer
    x = 578.43

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Double scale
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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.