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Finding the Third Proportional to 386,486 and 534,039

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Solution

The third proportional to 386,486 and 534,039 is: 737,924.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,486 : 534,039 = 534,039 : x
  2. Step 2: Convert to fraction form
    386,486/534,039 = 534,039/x
  3. Step 3: Cross multiply
    386,486x = 534,039 × 534,039
  4. Step 4: Simplify right side
    386,486x = 285,197,653,521
  5. Step 5: Solve for x
    x = 285,197,653,521/386,486
  6. Step 6: Final answer
    x = 737,924.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.