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Finding the Fourth Proportional to 717.17, 989.15 and 592.29

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Solution

The fourth proportional to 717.17, 989.15 and 592.29 is: 816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.17 : 989.15 = 592.29 : x
  2. Step 2: Convert to fraction form
    717.17/989.15 = 592.29/x
  3. Step 3: Cross multiply
    717.17x = 989.15 × 592.29
  4. Step 4: Simplify right side
    717.17x = 585,860.69
  5. Step 5: Solve for x
    x = 585,860.69/717.17
  6. Step 6: Final answer
    x = 816.91

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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.