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Finding the Third Proportional to 307,556 and 665,655

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Solution

The third proportional to 307,556 and 665,655 is: 1,440,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,556 : 665,655 = 665,655 : x
  2. Step 2: Convert to fraction form
    307,556/665,655 = 665,655/x
  3. Step 3: Cross multiply
    307,556x = 665,655 × 665,655
  4. Step 4: Simplify right side
    307,556x = 443,096,579,025
  5. Step 5: Solve for x
    x = 443,096,579,025/307,556
  6. Step 6: Final answer
    x = 1,440,702.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.