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Finding the Third Proportional to 609,804 and 905,859

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Solution

The third proportional to 609,804 and 905,859 is: 1,345,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,804 : 905,859 = 905,859 : x
  2. Step 2: Convert to fraction form
    609,804/905,859 = 905,859/x
  3. Step 3: Cross multiply
    609,804x = 905,859 × 905,859
  4. Step 4: Simplify right side
    609,804x = 820,580,527,881
  5. Step 5: Solve for x
    x = 820,580,527,881/609,804
  6. Step 6: Final answer
    x = 1,345,646.35

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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.