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Finding the Fourth Proportional to 996.68, 1,374.84 and 598.23

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Solution

The fourth proportional to 996.68, 1,374.84 and 598.23 is: 825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.68 : 1,374.84 = 598.23 : x
  2. Step 2: Convert to fraction form
    996.68/1,374.84 = 598.23/x
  3. Step 3: Cross multiply
    996.68x = 1,374.84 × 598.23
  4. Step 4: Simplify right side
    996.68x = 822,470.53
  5. Step 5: Solve for x
    x = 822,470.53/996.68
  6. Step 6: Final answer
    x = 825.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.