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Finding the Fourth Proportional to 534.08, 801.12 and 426.08

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Solution

The fourth proportional to 534.08, 801.12 and 426.08 is: 639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.08 : 801.12 = 426.08 : x
  2. Step 2: Convert to fraction form
    534.08/801.12 = 426.08/x
  3. Step 3: Cross multiply
    534.08x = 801.12 × 426.08
  4. Step 4: Simplify right side
    534.08x = 341,341.21
  5. Step 5: Solve for x
    x = 341,341.21/534.08
  6. Step 6: Final answer
    x = 639.12

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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.