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Finding the Third Proportional to 388,207.50 and 823,071

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Solution

The third proportional to 388,207.50 and 823,071 is: 1,745,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,207.50 : 823,071 = 823,071 : x
  2. Step 2: Convert to fraction form
    388,207.50/823,071 = 823,071/x
  3. Step 3: Cross multiply
    388,207.50x = 823,071 × 823,071
  4. Step 4: Simplify right side
    388,207.50x = 677,445,871,041
  5. Step 5: Solve for x
    x = 677,445,871,041/388,207.50
  6. Step 6: Final answer
    x = 1,745,061.27

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.