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Finding the Third Proportional to 813,391.03 and 1,260,979.31

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Solution

The third proportional to 813,391.03 and 1,260,979.31 is: 1,954,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,391.03 : 1,260,979.31 = 1,260,979.31 : x
  2. Step 2: Convert to fraction form
    813,391.03/1,260,979.31 = 1,260,979.31/x
  3. Step 3: Cross multiply
    813,391.03x = 1,260,979.31 × 1,260,979.31
  4. Step 4: Simplify right side
    813,391.03x = 1,590,068,826,552.97
  5. Step 5: Solve for x
    x = 1,590,068,826,552.97/813,391.03
  6. Step 6: Final answer
    x = 1,954,863.98

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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.