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Finding the Third Proportional to 273,477 and 413,988

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Solution

The third proportional to 273,477 and 413,988 is: 626,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,477 : 413,988 = 413,988 : x
  2. Step 2: Convert to fraction form
    273,477/413,988 = 413,988/x
  3. Step 3: Cross multiply
    273,477x = 413,988 × 413,988
  4. Step 4: Simplify right side
    273,477x = 171,386,064,144
  5. Step 5: Solve for x
    x = 171,386,064,144/273,477
  6. Step 6: Final answer
    x = 626,692.79

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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.