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Finding the Third Proportional to 616,081 and 921,601

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Solution

The third proportional to 616,081 and 921,601 is: 1,378,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,081 : 921,601 = 921,601 : x
  2. Step 2: Convert to fraction form
    616,081/921,601 = 921,601/x
  3. Step 3: Cross multiply
    616,081x = 921,601 × 921,601
  4. Step 4: Simplify right side
    616,081x = 849,348,403,201
  5. Step 5: Solve for x
    x = 849,348,403,201/616,081
  6. Step 6: Final answer
    x = 1,378,631.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.