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Finding the Third Proportional to 302,800 and 636,954

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Solution

The third proportional to 302,800 and 636,954 is: 1,339,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,800 : 636,954 = 636,954 : x
  2. Step 2: Convert to fraction form
    302,800/636,954 = 636,954/x
  3. Step 3: Cross multiply
    302,800x = 636,954 × 636,954
  4. Step 4: Simplify right side
    302,800x = 405,710,398,116
  5. Step 5: Solve for x
    x = 405,710,398,116/302,800
  6. Step 6: Final answer
    x = 1,339,862.61

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.