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Finding the Fourth Proportional to 577.69, 796.59 and 409.81

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Solution

The fourth proportional to 577.69, 796.59 and 409.81 is: 565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.69 : 796.59 = 409.81 : x
  2. Step 2: Convert to fraction form
    577.69/796.59 = 409.81/x
  3. Step 3: Cross multiply
    577.69x = 796.59 × 409.81
  4. Step 4: Simplify right side
    577.69x = 326,450.55
  5. Step 5: Solve for x
    x = 326,450.55/577.69
  6. Step 6: Final answer
    x = 565.10

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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.