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Finding the Fourth Proportional to 606.88, 837.78 and 385.93

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Solution

The fourth proportional to 606.88, 837.78 and 385.93 is: 532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.88 : 837.78 = 385.93 : x
  2. Step 2: Convert to fraction form
    606.88/837.78 = 385.93/x
  3. Step 3: Cross multiply
    606.88x = 837.78 × 385.93
  4. Step 4: Simplify right side
    606.88x = 323,324.44
  5. Step 5: Solve for x
    x = 323,324.44/606.88
  6. Step 6: Final answer
    x = 532.77

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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.