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Finding the Fourth Proportional to 613.28, 845.43 and 502.58

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Solution

The fourth proportional to 613.28, 845.43 and 502.58 is: 692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.28 : 845.43 = 502.58 : x
  2. Step 2: Convert to fraction form
    613.28/845.43 = 502.58/x
  3. Step 3: Cross multiply
    613.28x = 845.43 × 502.58
  4. Step 4: Simplify right side
    613.28x = 424,896.21
  5. Step 5: Solve for x
    x = 424,896.21/613.28
  6. Step 6: Final answer
    x = 692.83

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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.