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Finding the Third Proportional to 308,115 and 666,774

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Solution

The third proportional to 308,115 and 666,774 is: 1,442,927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,115 : 666,774 = 666,774 : x
  2. Step 2: Convert to fraction form
    308,115/666,774 = 666,774/x
  3. Step 3: Cross multiply
    308,115x = 666,774 × 666,774
  4. Step 4: Simplify right side
    308,115x = 444,587,567,076
  5. Step 5: Solve for x
    x = 444,587,567,076/308,115
  6. Step 6: Final answer
    x = 1,442,927.37

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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.