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Finding the Fourth Proportional to 940.06, 1,406.49 and 568.50

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Solution

The fourth proportional to 940.06, 1,406.49 and 568.50 is: 850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.06 : 1,406.49 = 568.50 : x
  2. Step 2: Convert to fraction form
    940.06/1,406.49 = 568.50/x
  3. Step 3: Cross multiply
    940.06x = 1,406.49 × 568.50
  4. Step 4: Simplify right side
    940.06x = 799,589.57
  5. Step 5: Solve for x
    x = 799,589.57/940.06
  6. Step 6: Final answer
    x = 850.57

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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.