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Finding the Third Proportional to 386,481 and 534,031.50

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Solution

The third proportional to 386,481 and 534,031.50 is: 737,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,481 : 534,031.50 = 534,031.50 : x
  2. Step 2: Convert to fraction form
    386,481/534,031.50 = 534,031.50/x
  3. Step 3: Cross multiply
    386,481x = 534,031.50 × 534,031.50
  4. Step 4: Simplify right side
    386,481x = 285,189,642,992.25
  5. Step 5: Solve for x
    x = 285,189,642,992.25/386,481
  6. Step 6: Final answer
    x = 737,913.75

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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.