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Finding the Fourth Proportional to 968.58, 1,450.21 and 676.37

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Solution

The fourth proportional to 968.58, 1,450.21 and 676.37 is: 1,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.58 : 1,450.21 = 676.37 : x
  2. Step 2: Convert to fraction form
    968.58/1,450.21 = 676.37/x
  3. Step 3: Cross multiply
    968.58x = 1,450.21 × 676.37
  4. Step 4: Simplify right side
    968.58x = 980,880.47
  5. Step 5: Solve for x
    x = 980,880.47/968.58
  6. Step 6: Final answer
    x = 1,012.70

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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.