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Finding the Third Proportional to 512.58 and 1,127.67

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Solution

The third proportional to 512.58 and 1,127.67 is: 2,480.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.58 : 1,127.67 = 1,127.67 : x
  2. Step 2: Convert to fraction form
    512.58/1,127.67 = 1,127.67/x
  3. Step 3: Cross multiply
    512.58x = 1,127.67 × 1,127.67
  4. Step 4: Simplify right side
    512.58x = 1,271,643.86
  5. Step 5: Solve for x
    x = 1,271,643.86/512.58
  6. Step 6: Final answer
    x = 2,480.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.