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Finding the Third Proportional to 887.63 and 1,218.94

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Solution

The third proportional to 887.63 and 1,218.94 is: 1,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.63 : 1,218.94 = 1,218.94 : x
  2. Step 2: Convert to fraction form
    887.63/1,218.94 = 1,218.94/x
  3. Step 3: Cross multiply
    887.63x = 1,218.94 × 1,218.94
  4. Step 4: Simplify right side
    887.63x = 1,485,808.63
  5. Step 5: Solve for x
    x = 1,485,808.63/887.63
  6. Step 6: Final answer
    x = 1,673.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.