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Finding the Third Proportional to 423,988.50 and 606,912

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Solution

The third proportional to 423,988.50 and 606,912 is: 868,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,988.50 : 606,912 = 606,912 : x
  2. Step 2: Convert to fraction form
    423,988.50/606,912 = 606,912/x
  3. Step 3: Cross multiply
    423,988.50x = 606,912 × 606,912
  4. Step 4: Simplify right side
    423,988.50x = 368,342,175,744
  5. Step 5: Solve for x
    x = 368,342,175,744/423,988.50
  6. Step 6: Final answer
    x = 868,755.11

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.