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Finding the Third Proportional to 388,961 and 804,922

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Solution

The third proportional to 388,961 and 804,922 is: 1,665,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,961 : 804,922 = 804,922 : x
  2. Step 2: Convert to fraction form
    388,961/804,922 = 804,922/x
  3. Step 3: Cross multiply
    388,961x = 804,922 × 804,922
  4. Step 4: Simplify right side
    388,961x = 647,899,426,084
  5. Step 5: Solve for x
    x = 647,899,426,084/388,961
  6. Step 6: Final answer
    x = 1,665,718.22

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.