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Finding the Fourth Proportional to 536.47, 739.61 and 481.79

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Solution

The fourth proportional to 536.47, 739.61 and 481.79 is: 664.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.47 : 739.61 = 481.79 : x
  2. Step 2: Convert to fraction form
    536.47/739.61 = 481.79/x
  3. Step 3: Cross multiply
    536.47x = 739.61 × 481.79
  4. Step 4: Simplify right side
    536.47x = 356,339.76
  5. Step 5: Solve for x
    x = 356,339.76/536.47
  6. Step 6: Final answer
    x = 664.23

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1.5x scale

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.