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Finding the Third Proportional to 331,532 and 508,747

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Solution

The third proportional to 331,532 and 508,747 is: 780,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,532 : 508,747 = 508,747 : x
  2. Step 2: Convert to fraction form
    331,532/508,747 = 508,747/x
  3. Step 3: Cross multiply
    331,532x = 508,747 × 508,747
  4. Step 4: Simplify right side
    331,532x = 258,823,510,009
  5. Step 5: Solve for x
    x = 258,823,510,009/331,532
  6. Step 6: Final answer
    x = 780,689.38

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.