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Finding the Third Proportional to 635,338 and 987,855

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Solution

The third proportional to 635,338 and 987,855 is: 1,535,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,338 : 987,855 = 987,855 : x
  2. Step 2: Convert to fraction form
    635,338/987,855 = 987,855/x
  3. Step 3: Cross multiply
    635,338x = 987,855 × 987,855
  4. Step 4: Simplify right side
    635,338x = 975,857,501,025
  5. Step 5: Solve for x
    x = 975,857,501,025/635,338
  6. Step 6: Final answer
    x = 1,535,965.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.