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Finding the Third Proportional to 440,077 and 661,089

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Solution

The third proportional to 440,077 and 661,089 is: 993,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,077 : 661,089 = 661,089 : x
  2. Step 2: Convert to fraction form
    440,077/661,089 = 661,089/x
  3. Step 3: Cross multiply
    440,077x = 661,089 × 661,089
  4. Step 4: Simplify right side
    440,077x = 437,038,665,921
  5. Step 5: Solve for x
    x = 437,038,665,921/440,077
  6. Step 6: Final answer
    x = 993,095.90

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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.