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Finding the Fourth Proportional to 606.89, 909.63 and 433.97

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Solution

The fourth proportional to 606.89, 909.63 and 433.97 is: 650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.89 : 909.63 = 433.97 : x
  2. Step 2: Convert to fraction form
    606.89/909.63 = 433.97/x
  3. Step 3: Cross multiply
    606.89x = 909.63 × 433.97
  4. Step 4: Simplify right side
    606.89x = 394,747.58
  5. Step 5: Solve for x
    x = 394,747.58/606.89
  6. Step 6: Final answer
    x = 650.45

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1.5x scale

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.