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Finding the Fourth Proportional to 794.75, 1,196.27 and 719.28

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Solution

The fourth proportional to 794.75, 1,196.27 and 719.28 is: 1,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.75 : 1,196.27 = 719.28 : x
  2. Step 2: Convert to fraction form
    794.75/1,196.27 = 719.28/x
  3. Step 3: Cross multiply
    794.75x = 1,196.27 × 719.28
  4. Step 4: Simplify right side
    794.75x = 860,452.19
  5. Step 5: Solve for x
    x = 860,452.19/794.75
  6. Step 6: Final answer
    x = 1,082.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.