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Finding the Fourth Proportional to 699.15, 958.05 and 673.65

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Solution

The fourth proportional to 699.15, 958.05 and 673.65 is: 923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.15 : 958.05 = 673.65 : x
  2. Step 2: Convert to fraction form
    699.15/958.05 = 673.65/x
  3. Step 3: Cross multiply
    699.15x = 958.05 × 673.65
  4. Step 4: Simplify right side
    699.15x = 645,390.38
  5. Step 5: Solve for x
    x = 645,390.38/699.15
  6. Step 6: Final answer
    x = 923.11

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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.