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Finding the Third Proportional to 290,308 and 622,088

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Solution

The third proportional to 290,308 and 622,088 is: 1,333,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,308 : 622,088 = 622,088 : x
  2. Step 2: Convert to fraction form
    290,308/622,088 = 622,088/x
  3. Step 3: Cross multiply
    290,308x = 622,088 × 622,088
  4. Step 4: Simplify right side
    290,308x = 386,993,479,744
  5. Step 5: Solve for x
    x = 386,993,479,744/290,308
  6. Step 6: Final answer
    x = 1,333,044.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.