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Finding the Third Proportional to 609,806 and 905,862

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Solution

The third proportional to 609,806 and 905,862 is: 1,345,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,806 : 905,862 = 905,862 : x
  2. Step 2: Convert to fraction form
    609,806/905,862 = 905,862/x
  3. Step 3: Cross multiply
    609,806x = 905,862 × 905,862
  4. Step 4: Simplify right side
    609,806x = 820,585,963,044
  5. Step 5: Solve for x
    x = 820,585,963,044/609,806
  6. Step 6: Final answer
    x = 1,345,650.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.