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Finding the Fourth Proportional to 796.96, 1,195.53 and 386.29

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Solution

The fourth proportional to 796.96, 1,195.53 and 386.29 is: 579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.96 : 1,195.53 = 386.29 : x
  2. Step 2: Convert to fraction form
    796.96/1,195.53 = 386.29/x
  3. Step 3: Cross multiply
    796.96x = 1,195.53 × 386.29
  4. Step 4: Simplify right side
    796.96x = 461,821.28
  5. Step 5: Solve for x
    x = 461,821.28/796.96
  6. Step 6: Final answer
    x = 579.48

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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.