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Finding the Fourth Proportional to 529, 791.34 and 525.40

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Solution

The fourth proportional to 529, 791.34 and 525.40 is: 785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529 : 791.34 = 525.40 : x
  2. Step 2: Convert to fraction form
    529/791.34 = 525.40/x
  3. Step 3: Cross multiply
    529x = 791.34 × 525.40
  4. Step 4: Simplify right side
    529x = 415,770.04
  5. Step 5: Solve for x
    x = 415,770.04/529
  6. Step 6: Final answer
    x = 785.95

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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.