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Finding the Fourth Proportional to 695.43, 960.45 and 539.94

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Solution

The fourth proportional to 695.43, 960.45 and 539.94 is: 745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.43 : 960.45 = 539.94 : x
  2. Step 2: Convert to fraction form
    695.43/960.45 = 539.94/x
  3. Step 3: Cross multiply
    695.43x = 960.45 × 539.94
  4. Step 4: Simplify right side
    695.43x = 518,585.37
  5. Step 5: Solve for x
    x = 518,585.37/695.43
  6. Step 6: Final answer
    x = 745.70

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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.