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Finding the Third Proportional to 847.89 and 1,277.17

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Solution

The third proportional to 847.89 and 1,277.17 is: 1,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.89 : 1,277.17 = 1,277.17 : x
  2. Step 2: Convert to fraction form
    847.89/1,277.17 = 1,277.17/x
  3. Step 3: Cross multiply
    847.89x = 1,277.17 × 1,277.17
  4. Step 4: Simplify right side
    847.89x = 1,631,172.99
  5. Step 5: Solve for x
    x = 1,631,172.99/847.89
  6. Step 6: Final answer
    x = 1,923.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.