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Finding the Fourth Proportional to 550.92, 759.54 and 411.12

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Solution

The fourth proportional to 550.92, 759.54 and 411.12 is: 566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.92 : 759.54 = 411.12 : x
  2. Step 2: Convert to fraction form
    550.92/759.54 = 411.12/x
  3. Step 3: Cross multiply
    550.92x = 759.54 × 411.12
  4. Step 4: Simplify right side
    550.92x = 312,262.08
  5. Step 5: Solve for x
    x = 312,262.08/550.92
  6. Step 6: Final answer
    x = 566.80

Related Problems

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Double scale
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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.