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Finding the Fourth Proportional to 606.15, 906.93 and 401.22

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Solution

The fourth proportional to 606.15, 906.93 and 401.22 is: 600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.15 : 906.93 = 401.22 : x
  2. Step 2: Convert to fraction form
    606.15/906.93 = 401.22/x
  3. Step 3: Cross multiply
    606.15x = 906.93 × 401.22
  4. Step 4: Simplify right side
    606.15x = 363,878.45
  5. Step 5: Solve for x
    x = 363,878.45/606.15
  6. Step 6: Final answer
    x = 600.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.