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Finding the Fourth Proportional to 725.43, 994.93 and 695.67

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Solution

The fourth proportional to 725.43, 994.93 and 695.67 is: 954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.43 : 994.93 = 695.67 : x
  2. Step 2: Convert to fraction form
    725.43/994.93 = 695.67/x
  3. Step 3: Cross multiply
    725.43x = 994.93 × 695.67
  4. Step 4: Simplify right side
    725.43x = 692,141.21
  5. Step 5: Solve for x
    x = 692,141.21/725.43
  6. Step 6: Final answer
    x = 954.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.