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Finding the Fourth Proportional to 589.52, 879.94 and 513.02

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Solution

The fourth proportional to 589.52, 879.94 and 513.02 is: 765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.52 : 879.94 = 513.02 : x
  2. Step 2: Convert to fraction form
    589.52/879.94 = 513.02/x
  3. Step 3: Cross multiply
    589.52x = 879.94 × 513.02
  4. Step 4: Simplify right side
    589.52x = 451,426.82
  5. Step 5: Solve for x
    x = 451,426.82/589.52
  6. Step 6: Final answer
    x = 765.75

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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.