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Finding the Third Proportional to 384,884 and 554,407

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Solution

The third proportional to 384,884 and 554,407 is: 798,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,884 : 554,407 = 554,407 : x
  2. Step 2: Convert to fraction form
    384,884/554,407 = 554,407/x
  3. Step 3: Cross multiply
    384,884x = 554,407 × 554,407
  4. Step 4: Simplify right side
    384,884x = 307,367,121,649
  5. Step 5: Solve for x
    x = 307,367,121,649/384,884
  6. Step 6: Final answer
    x = 798,596.78

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.