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Finding the Third Proportional to 436,640 and 694,323

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Solution

The third proportional to 436,640 and 694,323 is: 1,104,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,640 : 694,323 = 694,323 : x
  2. Step 2: Convert to fraction form
    436,640/694,323 = 694,323/x
  3. Step 3: Cross multiply
    436,640x = 694,323 × 694,323
  4. Step 4: Simplify right side
    436,640x = 482,084,428,329
  5. Step 5: Solve for x
    x = 482,084,428,329/436,640
  6. Step 6: Final answer
    x = 1,104,077.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.