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Finding the Fourth Proportional to 613.06, 845.61 and 426.58

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Solution

The fourth proportional to 613.06, 845.61 and 426.58 is: 588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.06 : 845.61 = 426.58 : x
  2. Step 2: Convert to fraction form
    613.06/845.61 = 426.58/x
  3. Step 3: Cross multiply
    613.06x = 845.61 × 426.58
  4. Step 4: Simplify right side
    613.06x = 360,720.31
  5. Step 5: Solve for x
    x = 360,720.31/613.06
  6. Step 6: Final answer
    x = 588.39

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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.