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Finding the Fourth Proportional to 950.65, 1,311.20 and 601

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Solution

The fourth proportional to 950.65, 1,311.20 and 601 is: 828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.65 : 1,311.20 = 601 : x
  2. Step 2: Convert to fraction form
    950.65/1,311.20 = 601/x
  3. Step 3: Cross multiply
    950.65x = 1,311.20 × 601
  4. Step 4: Simplify right side
    950.65x = 788,028.20
  5. Step 5: Solve for x
    x = 788,028.20/950.65
  6. Step 6: Final answer
    x = 828.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.