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Finding the Fourth Proportional to 675.92, 930.87 and 634.25

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Solution

The fourth proportional to 675.92, 930.87 and 634.25 is: 873.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.92 : 930.87 = 634.25 : x
  2. Step 2: Convert to fraction form
    675.92/930.87 = 634.25/x
  3. Step 3: Cross multiply
    675.92x = 930.87 × 634.25
  4. Step 4: Simplify right side
    675.92x = 590,399.64
  5. Step 5: Solve for x
    x = 590,399.64/675.92
  6. Step 6: Final answer
    x = 873.48

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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.