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Finding the Fourth Proportional to 1,329.06, 1,993.59 and 463.38

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Solution

The fourth proportional to 1,329.06, 1,993.59 and 463.38 is: 695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.06 : 1,993.59 = 463.38 : x
  2. Step 2: Convert to fraction form
    1,329.06/1,993.59 = 463.38/x
  3. Step 3: Cross multiply
    1,329.06x = 1,993.59 × 463.38
  4. Step 4: Simplify right side
    1,329.06x = 923,789.73
  5. Step 5: Solve for x
    x = 923,789.73/1,329.06
  6. Step 6: Final answer
    x = 695.07

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.