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Finding the Third Proportional to 392,310.50 and 606,209.75

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Solution

The third proportional to 392,310.50 and 606,209.75 is: 936,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,310.50 : 606,209.75 = 606,209.75 : x
  2. Step 2: Convert to fraction form
    392,310.50/606,209.75 = 606,209.75/x
  3. Step 3: Cross multiply
    392,310.50x = 606,209.75 × 606,209.75
  4. Step 4: Simplify right side
    392,310.50x = 367,490,260,995.06
  5. Step 5: Solve for x
    x = 367,490,260,995.06/392,310.50
  6. Step 6: Final answer
    x = 936,733.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.