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Finding the Fourth Proportional to 746.77, 1,029.99 and 481.04

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Solution

The fourth proportional to 746.77, 1,029.99 and 481.04 is: 663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.77 : 1,029.99 = 481.04 : x
  2. Step 2: Convert to fraction form
    746.77/1,029.99 = 481.04/x
  3. Step 3: Cross multiply
    746.77x = 1,029.99 × 481.04
  4. Step 4: Simplify right side
    746.77x = 495,466.39
  5. Step 5: Solve for x
    x = 495,466.39/746.77
  6. Step 6: Final answer
    x = 663.48

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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.