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Finding the Third Proportional to 453.88 and 647.75

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Solution

The third proportional to 453.88 and 647.75 is: 924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.88 : 647.75 = 647.75 : x
  2. Step 2: Convert to fraction form
    453.88/647.75 = 647.75/x
  3. Step 3: Cross multiply
    453.88x = 647.75 × 647.75
  4. Step 4: Simplify right side
    453.88x = 419,580.06
  5. Step 5: Solve for x
    x = 419,580.06/453.88
  6. Step 6: Final answer
    x = 924.44

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.