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Finding the Fourth Proportional to 950.73, 1,415.33 and 940.20

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Solution

The fourth proportional to 950.73, 1,415.33 and 940.20 is: 1,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.73 : 1,415.33 = 940.20 : x
  2. Step 2: Convert to fraction form
    950.73/1,415.33 = 940.20/x
  3. Step 3: Cross multiply
    950.73x = 1,415.33 × 940.20
  4. Step 4: Simplify right side
    950.73x = 1,330,688.57
  5. Step 5: Solve for x
    x = 1,330,688.57/950.73
  6. Step 6: Final answer
    x = 1,399.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.