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Finding the Fourth Proportional to 717.68, 989.52 and 599.84

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Solution

The fourth proportional to 717.68, 989.52 and 599.84 is: 827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.68 : 989.52 = 599.84 : x
  2. Step 2: Convert to fraction form
    717.68/989.52 = 599.84/x
  3. Step 3: Cross multiply
    717.68x = 989.52 × 599.84
  4. Step 4: Simplify right side
    717.68x = 593,553.68
  5. Step 5: Solve for x
    x = 593,553.68/717.68
  6. Step 6: Final answer
    x = 827.05

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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.