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Finding the Third Proportional to 290,545 and 629,346

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Solution

The third proportional to 290,545 and 629,346 is: 1,363,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,545 : 629,346 = 629,346 : x
  2. Step 2: Convert to fraction form
    290,545/629,346 = 629,346/x
  3. Step 3: Cross multiply
    290,545x = 629,346 × 629,346
  4. Step 4: Simplify right side
    290,545x = 396,076,387,716
  5. Step 5: Solve for x
    x = 396,076,387,716/290,545
  6. Step 6: Final answer
    x = 1,363,218.74

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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.