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Finding the Third Proportional to 306,906 and 669,567

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Solution

The third proportional to 306,906 and 669,567 is: 1,460,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,906 : 669,567 = 669,567 : x
  2. Step 2: Convert to fraction form
    306,906/669,567 = 669,567/x
  3. Step 3: Cross multiply
    306,906x = 669,567 × 669,567
  4. Step 4: Simplify right side
    306,906x = 448,319,967,489
  5. Step 5: Solve for x
    x = 448,319,967,489/306,906
  6. Step 6: Final answer
    x = 1,460,772.90

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.