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Finding the Third Proportional to 571.75 and 790.50

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Solution

The third proportional to 571.75 and 790.50 is: 1,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.75 : 790.50 = 790.50 : x
  2. Step 2: Convert to fraction form
    571.75/790.50 = 790.50/x
  3. Step 3: Cross multiply
    571.75x = 790.50 × 790.50
  4. Step 4: Simplify right side
    571.75x = 624,890.25
  5. Step 5: Solve for x
    x = 624,890.25/571.75
  6. Step 6: Final answer
    x = 1,092.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.