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Finding the Fourth Proportional to 793.49, 1,188.81 and 382.41

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Solution

The fourth proportional to 793.49, 1,188.81 and 382.41 is: 572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.49 : 1,188.81 = 382.41 : x
  2. Step 2: Convert to fraction form
    793.49/1,188.81 = 382.41/x
  3. Step 3: Cross multiply
    793.49x = 1,188.81 × 382.41
  4. Step 4: Simplify right side
    793.49x = 454,612.83
  5. Step 5: Solve for x
    x = 454,612.83/793.49
  6. Step 6: Final answer
    x = 572.93

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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.