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Finding the Fourth Proportional to 941.36, 1,299.60 and 568.44

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Solution

The fourth proportional to 941.36, 1,299.60 and 568.44 is: 784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.36 : 1,299.60 = 568.44 : x
  2. Step 2: Convert to fraction form
    941.36/1,299.60 = 568.44/x
  3. Step 3: Cross multiply
    941.36x = 1,299.60 × 568.44
  4. Step 4: Simplify right side
    941.36x = 738,744.62
  5. Step 5: Solve for x
    x = 738,744.62/941.36
  6. Step 6: Final answer
    x = 784.76

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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.