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Finding the Fourth Proportional to 694.38, 958.70 and 536.74

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Solution

The fourth proportional to 694.38, 958.70 and 536.74 is: 741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.38 : 958.70 = 536.74 : x
  2. Step 2: Convert to fraction form
    694.38/958.70 = 536.74/x
  3. Step 3: Cross multiply
    694.38x = 958.70 × 536.74
  4. Step 4: Simplify right side
    694.38x = 514,572.64
  5. Step 5: Solve for x
    x = 514,572.64/694.38
  6. Step 6: Final answer
    x = 741.05

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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.