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Finding the Fourth Proportional to 606.37, 909.04 and 400.31

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Solution

The fourth proportional to 606.37, 909.04 and 400.31 is: 600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.37 : 909.04 = 400.31 : x
  2. Step 2: Convert to fraction form
    606.37/909.04 = 400.31/x
  3. Step 3: Cross multiply
    606.37x = 909.04 × 400.31
  4. Step 4: Simplify right side
    606.37x = 363,897.80
  5. Step 5: Solve for x
    x = 363,897.80/606.37
  6. Step 6: Final answer
    x = 600.13

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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.