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Finding the Fourth Proportional to 695.39, 957.67 and 612.46

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Solution

The fourth proportional to 695.39, 957.67 and 612.46 is: 843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.39 : 957.67 = 612.46 : x
  2. Step 2: Convert to fraction form
    695.39/957.67 = 612.46/x
  3. Step 3: Cross multiply
    695.39x = 957.67 × 612.46
  4. Step 4: Simplify right side
    695.39x = 586,534.57
  5. Step 5: Solve for x
    x = 586,534.57/695.39
  6. Step 6: Final answer
    x = 843.46

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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.