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Finding the Third Proportional to 290,530.50 and 627,744.25

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Solution

The third proportional to 290,530.50 and 627,744.25 is: 1,356,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,530.50 : 627,744.25 = 627,744.25 : x
  2. Step 2: Convert to fraction form
    290,530.50/627,744.25 = 627,744.25/x
  3. Step 3: Cross multiply
    290,530.50x = 627,744.25 × 627,744.25
  4. Step 4: Simplify right side
    290,530.50x = 394,062,843,408.06
  5. Step 5: Solve for x
    x = 394,062,843,408.06/290,530.50
  6. Step 6: Final answer
    x = 1,356,356.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.