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Finding the Fourth Proportional to 940.29, 1,411.11 and 696.08

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Solution

The fourth proportional to 940.29, 1,411.11 and 696.08 is: 1,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.29 : 1,411.11 = 696.08 : x
  2. Step 2: Convert to fraction form
    940.29/1,411.11 = 696.08/x
  3. Step 3: Cross multiply
    940.29x = 1,411.11 × 696.08
  4. Step 4: Simplify right side
    940.29x = 982,238.39
  5. Step 5: Solve for x
    x = 982,238.39/940.29
  6. Step 6: Final answer
    x = 1,044.61

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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.