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Finding the Fourth Proportional to 695, 958.38 and 508.58

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Solution

The fourth proportional to 695, 958.38 and 508.58 is: 701.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    695 : 958.38 = 508.58 : x
  2. Step 2: Convert to fraction form
    695/958.38 = 508.58/x
  3. Step 3: Cross multiply
    695x = 958.38 × 508.58
  4. Step 4: Simplify right side
    695x = 487,412.90
  5. Step 5: Solve for x
    x = 487,412.90/695
  6. Step 6: Final answer
    x = 701.31

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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.