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Finding the Fourth Proportional to 695.99, 960.66 and 434.16

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Solution

The fourth proportional to 695.99, 960.66 and 434.16 is: 599.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.99 : 960.66 = 434.16 : x
  2. Step 2: Convert to fraction form
    695.99/960.66 = 434.16/x
  3. Step 3: Cross multiply
    695.99x = 960.66 × 434.16
  4. Step 4: Simplify right side
    695.99x = 417,080.15
  5. Step 5: Solve for x
    x = 417,080.15/695.99
  6. Step 6: Final answer
    x = 599.26

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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.