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Finding the Third Proportional to 393,436 and 607,588

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Solution

The third proportional to 393,436 and 607,588 is: 938,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,436 : 607,588 = 607,588 : x
  2. Step 2: Convert to fraction form
    393,436/607,588 = 607,588/x
  3. Step 3: Cross multiply
    393,436x = 607,588 × 607,588
  4. Step 4: Simplify right side
    393,436x = 369,163,177,744
  5. Step 5: Solve for x
    x = 369,163,177,744/393,436
  6. Step 6: Final answer
    x = 938,305.54

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.