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Finding the Third Proportional to 328,189 and 491,737

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Solution

The third proportional to 328,189 and 491,737 is: 736,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,189 : 491,737 = 491,737 : x
  2. Step 2: Convert to fraction form
    328,189/491,737 = 491,737/x
  3. Step 3: Cross multiply
    328,189x = 491,737 × 491,737
  4. Step 4: Simplify right side
    328,189x = 241,805,277,169
  5. Step 5: Solve for x
    x = 241,805,277,169/328,189
  6. Step 6: Final answer
    x = 736,786.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.