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Finding the Fourth Proportional to 566.20, 849.30 and 411.40

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Solution

The fourth proportional to 566.20, 849.30 and 411.40 is: 617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.20 : 849.30 = 411.40 : x
  2. Step 2: Convert to fraction form
    566.20/849.30 = 411.40/x
  3. Step 3: Cross multiply
    566.20x = 849.30 × 411.40
  4. Step 4: Simplify right side
    566.20x = 349,402.02
  5. Step 5: Solve for x
    x = 349,402.02/566.20
  6. Step 6: Final answer
    x = 617.10

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.