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Finding the Fourth Proportional to 696.52, 960.33 and 509.86

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Solution

The fourth proportional to 696.52, 960.33 and 509.86 is: 702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.52 : 960.33 = 509.86 : x
  2. Step 2: Convert to fraction form
    696.52/960.33 = 509.86/x
  3. Step 3: Cross multiply
    696.52x = 960.33 × 509.86
  4. Step 4: Simplify right side
    696.52x = 489,633.85
  5. Step 5: Solve for x
    x = 489,633.85/696.52
  6. Step 6: Final answer
    x = 702.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.