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Finding the Fourth Proportional to 684.37, 944.40 and 573.58

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Solution

The fourth proportional to 684.37, 944.40 and 573.58 is: 791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.37 : 944.40 = 573.58 : x
  2. Step 2: Convert to fraction form
    684.37/944.40 = 573.58/x
  3. Step 3: Cross multiply
    684.37x = 944.40 × 573.58
  4. Step 4: Simplify right side
    684.37x = 541,688.95
  5. Step 5: Solve for x
    x = 541,688.95/684.37
  6. Step 6: Final answer
    x = 791.51

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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.