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Finding the Third Proportional to 379,880 and 810,608

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Solution

The third proportional to 379,880 and 810,608 is: 1,729,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,880 : 810,608 = 810,608 : x
  2. Step 2: Convert to fraction form
    379,880/810,608 = 810,608/x
  3. Step 3: Cross multiply
    379,880x = 810,608 × 810,608
  4. Step 4: Simplify right side
    379,880x = 657,085,329,664
  5. Step 5: Solve for x
    x = 657,085,329,664/379,880
  6. Step 6: Final answer
    x = 1,729,718.15

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.