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Finding the Third Proportional to 654.19 and 887.63

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Solution

The third proportional to 654.19 and 887.63 is: 1,204.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.19 : 887.63 = 887.63 : x
  2. Step 2: Convert to fraction form
    654.19/887.63 = 887.63/x
  3. Step 3: Cross multiply
    654.19x = 887.63 × 887.63
  4. Step 4: Simplify right side
    654.19x = 787,878.14
  5. Step 5: Solve for x
    x = 787,878.14/654.19
  6. Step 6: Final answer
    x = 1,204.36

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.