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Finding the Third Proportional to 277,284 and 417,894

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Solution

The third proportional to 277,284 and 417,894 is: 629,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,284 : 417,894 = 417,894 : x
  2. Step 2: Convert to fraction form
    277,284/417,894 = 417,894/x
  3. Step 3: Cross multiply
    277,284x = 417,894 × 417,894
  4. Step 4: Simplify right side
    277,284x = 174,635,395,236
  5. Step 5: Solve for x
    x = 174,635,395,236/277,284
  6. Step 6: Final answer
    x = 629,806.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.