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Finding the Fourth Proportional to 526.75, 791.03 and 499.39

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Solution

The fourth proportional to 526.75, 791.03 and 499.39 is: 749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.75 : 791.03 = 499.39 : x
  2. Step 2: Convert to fraction form
    526.75/791.03 = 499.39/x
  3. Step 3: Cross multiply
    526.75x = 791.03 × 499.39
  4. Step 4: Simplify right side
    526.75x = 395,032.47
  5. Step 5: Solve for x
    x = 395,032.47/526.75
  6. Step 6: Final answer
    x = 749.94

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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.