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Finding the Third Proportional to 461,316 and 991,608

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Solution

The third proportional to 461,316 and 991,608 is: 2,131,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,316 : 991,608 = 991,608 : x
  2. Step 2: Convert to fraction form
    461,316/991,608 = 991,608/x
  3. Step 3: Cross multiply
    461,316x = 991,608 × 991,608
  4. Step 4: Simplify right side
    461,316x = 983,286,425,664
  5. Step 5: Solve for x
    x = 983,286,425,664/461,316
  6. Step 6: Final answer
    x = 2,131,481.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.