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Finding the Third Proportional to 805,469 and 1,128,859

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Solution

The third proportional to 805,469 and 1,128,859 is: 1,582,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,469 : 1,128,859 = 1,128,859 : x
  2. Step 2: Convert to fraction form
    805,469/1,128,859 = 1,128,859/x
  3. Step 3: Cross multiply
    805,469x = 1,128,859 × 1,128,859
  4. Step 4: Simplify right side
    805,469x = 1,274,322,641,881
  5. Step 5: Solve for x
    x = 1,274,322,641,881/805,469
  6. Step 6: Final answer
    x = 1,582,087.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.