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Finding the Fourth Proportional to 418.86, 582.65 and 410.94

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Solution

The fourth proportional to 418.86, 582.65 and 410.94 is: 571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.86 : 582.65 = 410.94 : x
  2. Step 2: Convert to fraction form
    418.86/582.65 = 410.94/x
  3. Step 3: Cross multiply
    418.86x = 582.65 × 410.94
  4. Step 4: Simplify right side
    418.86x = 239,432.14
  5. Step 5: Solve for x
    x = 239,432.14/418.86
  6. Step 6: Final answer
    x = 571.63

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.