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Finding the Third Proportional to 311,589 and 508,749

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Solution

The third proportional to 311,589 and 508,749 is: 830,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,589 : 508,749 = 508,749 : x
  2. Step 2: Convert to fraction form
    311,589/508,749 = 508,749/x
  3. Step 3: Cross multiply
    311,589x = 508,749 × 508,749
  4. Step 4: Simplify right side
    311,589x = 258,825,545,001
  5. Step 5: Solve for x
    x = 258,825,545,001/311,589
  6. Step 6: Final answer
    x = 830,663.29

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.