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Finding the Fourth Proportional to 577.38, 795.64 and 411.30

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Solution

The fourth proportional to 577.38, 795.64 and 411.30 is: 566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.38 : 795.64 = 411.30 : x
  2. Step 2: Convert to fraction form
    577.38/795.64 = 411.30/x
  3. Step 3: Cross multiply
    577.38x = 795.64 × 411.30
  4. Step 4: Simplify right side
    577.38x = 327,246.73
  5. Step 5: Solve for x
    x = 327,246.73/577.38
  6. Step 6: Final answer
    x = 566.78

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.