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Finding the Fourth Proportional to 695.96, 960.46 and 459.98

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Solution

The fourth proportional to 695.96, 960.46 and 459.98 is: 634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.96 : 960.46 = 459.98 : x
  2. Step 2: Convert to fraction form
    695.96/960.46 = 459.98/x
  3. Step 3: Cross multiply
    695.96x = 960.46 × 459.98
  4. Step 4: Simplify right side
    695.96x = 441,792.39
  5. Step 5: Solve for x
    x = 441,792.39/695.96
  6. Step 6: Final answer
    x = 634.80

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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.