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Finding the Third Proportional to 290,539 and 629,335

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Solution

The third proportional to 290,539 and 629,335 is: 1,363,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,539 : 629,335 = 629,335 : x
  2. Step 2: Convert to fraction form
    290,539/629,335 = 629,335/x
  3. Step 3: Cross multiply
    290,539x = 629,335 × 629,335
  4. Step 4: Simplify right side
    290,539x = 396,062,542,225
  5. Step 5: Solve for x
    x = 396,062,542,225/290,539
  6. Step 6: Final answer
    x = 1,363,199.23

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.