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Finding the Fourth Proportional to 536.94, 804.95 and 511.42

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Solution

The fourth proportional to 536.94, 804.95 and 511.42 is: 766.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.94 : 804.95 = 511.42 : x
  2. Step 2: Convert to fraction form
    536.94/804.95 = 511.42/x
  3. Step 3: Cross multiply
    536.94x = 804.95 × 511.42
  4. Step 4: Simplify right side
    536.94x = 411,667.53
  5. Step 5: Solve for x
    x = 411,667.53/536.94
  6. Step 6: Final answer
    x = 766.69

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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.