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Finding the Fourth Proportional to 695.79, 962.28 and 608.31

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Solution

The fourth proportional to 695.79, 962.28 and 608.31 is: 841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.79 : 962.28 = 608.31 : x
  2. Step 2: Convert to fraction form
    695.79/962.28 = 608.31/x
  3. Step 3: Cross multiply
    695.79x = 962.28 × 608.31
  4. Step 4: Simplify right side
    695.79x = 585,364.55
  5. Step 5: Solve for x
    x = 585,364.55/695.79
  6. Step 6: Final answer
    x = 841.29

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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.