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Finding the Fourth Proportional to 793.36, 1,187.72 and 463.29

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Solution

The fourth proportional to 793.36, 1,187.72 and 463.29 is: 693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.36 : 1,187.72 = 463.29 : x
  2. Step 2: Convert to fraction form
    793.36/1,187.72 = 463.29/x
  3. Step 3: Cross multiply
    793.36x = 1,187.72 × 463.29
  4. Step 4: Simplify right side
    793.36x = 550,258.80
  5. Step 5: Solve for x
    x = 550,258.80/793.36
  6. Step 6: Final answer
    x = 693.58

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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.