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Finding the Fourth Proportional to 550.95, 760.62 and 411.83

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Solution

The fourth proportional to 550.95, 760.62 and 411.83 is: 568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.95 : 760.62 = 411.83 : x
  2. Step 2: Convert to fraction form
    550.95/760.62 = 411.83/x
  3. Step 3: Cross multiply
    550.95x = 760.62 × 411.83
  4. Step 4: Simplify right side
    550.95x = 313,246.13
  5. Step 5: Solve for x
    x = 313,246.13/550.95
  6. Step 6: Final answer
    x = 568.56

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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.