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Finding the Fourth Proportional to 613.34, 852.21 and 606.92

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Solution

The fourth proportional to 613.34, 852.21 and 606.92 is: 843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.34 : 852.21 = 606.92 : x
  2. Step 2: Convert to fraction form
    613.34/852.21 = 606.92/x
  3. Step 3: Cross multiply
    613.34x = 852.21 × 606.92
  4. Step 4: Simplify right side
    613.34x = 517,219.03
  5. Step 5: Solve for x
    x = 517,219.03/613.34
  6. Step 6: Final answer
    x = 843.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.