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Finding the Fourth Proportional to 551.24, 826.86 and 512.36

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Solution

The fourth proportional to 551.24, 826.86 and 512.36 is: 768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.24 : 826.86 = 512.36 : x
  2. Step 2: Convert to fraction form
    551.24/826.86 = 512.36/x
  3. Step 3: Cross multiply
    551.24x = 826.86 × 512.36
  4. Step 4: Simplify right side
    551.24x = 423,649.99
  5. Step 5: Solve for x
    x = 423,649.99/551.24
  6. Step 6: Final answer
    x = 768.54

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.