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Finding the Fourth Proportional to 411.83, 567.51 and 406.72

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Solution

The fourth proportional to 411.83, 567.51 and 406.72 is: 560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.83 : 567.51 = 406.72 : x
  2. Step 2: Convert to fraction form
    411.83/567.51 = 406.72/x
  3. Step 3: Cross multiply
    411.83x = 567.51 × 406.72
  4. Step 4: Simplify right side
    411.83x = 230,817.67
  5. Step 5: Solve for x
    x = 230,817.67/411.83
  6. Step 6: Final answer
    x = 560.47

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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.