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Finding the Fourth Proportional to 717.64, 982.91 and 675.61

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Solution

The fourth proportional to 717.64, 982.91 and 675.61 is: 925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.64 : 982.91 = 675.61 : x
  2. Step 2: Convert to fraction form
    717.64/982.91 = 675.61/x
  3. Step 3: Cross multiply
    717.64x = 982.91 × 675.61
  4. Step 4: Simplify right side
    717.64x = 664,063.83
  5. Step 5: Solve for x
    x = 664,063.83/717.64
  6. Step 6: Final answer
    x = 925.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.