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Finding the Third Proportional to 820,715 and 1,260,719.50

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Solution

The third proportional to 820,715 and 1,260,719.50 is: 1,936,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,715 : 1,260,719.50 = 1,260,719.50 : x
  2. Step 2: Convert to fraction form
    820,715/1,260,719.50 = 1,260,719.50/x
  3. Step 3: Cross multiply
    820,715x = 1,260,719.50 × 1,260,719.50
  4. Step 4: Simplify right side
    820,715x = 1,589,413,657,680.25
  5. Step 5: Solve for x
    x = 1,589,413,657,680.25/820,715
  6. Step 6: Final answer
    x = 1,936,620.70

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.