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Finding the Fourth Proportional to 536.64, 799.18 and 518.41

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Solution

The fourth proportional to 536.64, 799.18 and 518.41 is: 772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.64 : 799.18 = 518.41 : x
  2. Step 2: Convert to fraction form
    536.64/799.18 = 518.41/x
  3. Step 3: Cross multiply
    536.64x = 799.18 × 518.41
  4. Step 4: Simplify right side
    536.64x = 414,302.90
  5. Step 5: Solve for x
    x = 414,302.90/536.64
  6. Step 6: Final answer
    x = 772.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.