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Finding the Third Proportional to 550,399.50 and 775,080

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Solution

The third proportional to 550,399.50 and 775,080 is: 1,091,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,399.50 : 775,080 = 775,080 : x
  2. Step 2: Convert to fraction form
    550,399.50/775,080 = 775,080/x
  3. Step 3: Cross multiply
    550,399.50x = 775,080 × 775,080
  4. Step 4: Simplify right side
    550,399.50x = 600,749,006,400
  5. Step 5: Solve for x
    x = 600,749,006,400/550,399.50
  6. Step 6: Final answer
    x = 1,091,478.11

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.