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Finding the Third Proportional to 648 and 941.63

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Solution

The third proportional to 648 and 941.63 is: 1,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648 : 941.63 = 941.63 : x
  2. Step 2: Convert to fraction form
    648/941.63 = 941.63/x
  3. Step 3: Cross multiply
    648x = 941.63 × 941.63
  4. Step 4: Simplify right side
    648x = 886,657.64
  5. Step 5: Solve for x
    x = 886,657.64/648
  6. Step 6: Final answer
    x = 1,368.30

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.