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Finding the Third Proportional to 384,278 and 613,893

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Solution

The third proportional to 384,278 and 613,893 is: 980,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,278 : 613,893 = 613,893 : x
  2. Step 2: Convert to fraction form
    384,278/613,893 = 613,893/x
  3. Step 3: Cross multiply
    384,278x = 613,893 × 613,893
  4. Step 4: Simplify right side
    384,278x = 376,864,615,449
  5. Step 5: Solve for x
    x = 376,864,615,449/384,278
  6. Step 6: Final answer
    x = 980,708.28

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.