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Finding the Third Proportional to 243,904 and 521,698

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Solution

The third proportional to 243,904 and 521,698 is: 1,115,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,904 : 521,698 = 521,698 : x
  2. Step 2: Convert to fraction form
    243,904/521,698 = 521,698/x
  3. Step 3: Cross multiply
    243,904x = 521,698 × 521,698
  4. Step 4: Simplify right side
    243,904x = 272,168,803,204
  5. Step 5: Solve for x
    x = 272,168,803,204/243,904
  6. Step 6: Final answer
    x = 1,115,884.95

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.