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Finding the Fourth Proportional to 648.58, 968.26 and 625.80

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Solution

The fourth proportional to 648.58, 968.26 and 625.80 is: 934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.58 : 968.26 = 625.80 : x
  2. Step 2: Convert to fraction form
    648.58/968.26 = 625.80/x
  3. Step 3: Cross multiply
    648.58x = 968.26 × 625.80
  4. Step 4: Simplify right side
    648.58x = 605,935.38
  5. Step 5: Solve for x
    x = 605,935.38/648.58
  6. Step 6: Final answer
    x = 934.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.