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Finding the Third Proportional to 328,609 and 499,062

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Solution

The third proportional to 328,609 and 499,062 is: 757,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,609 : 499,062 = 499,062 : x
  2. Step 2: Convert to fraction form
    328,609/499,062 = 499,062/x
  3. Step 3: Cross multiply
    328,609x = 499,062 × 499,062
  4. Step 4: Simplify right side
    328,609x = 249,062,879,844
  5. Step 5: Solve for x
    x = 249,062,879,844/328,609
  6. Step 6: Final answer
    x = 757,930.79

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.