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Finding the Fourth Proportional to 695.54, 960.72 and 612.92

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Solution

The fourth proportional to 695.54, 960.72 and 612.92 is: 846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.54 : 960.72 = 612.92 : x
  2. Step 2: Convert to fraction form
    695.54/960.72 = 612.92/x
  3. Step 3: Cross multiply
    695.54x = 960.72 × 612.92
  4. Step 4: Simplify right side
    695.54x = 588,844.50
  5. Step 5: Solve for x
    x = 588,844.50/695.54
  6. Step 6: Final answer
    x = 846.60

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Double scale
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1.5x scale

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.