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Finding the Fourth Proportional to 606.77, 909.69 and 298.46

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Solution

The fourth proportional to 606.77, 909.69 and 298.46 is: 447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.77 : 909.69 = 298.46 : x
  2. Step 2: Convert to fraction form
    606.77/909.69 = 298.46/x
  3. Step 3: Cross multiply
    606.77x = 909.69 × 298.46
  4. Step 4: Simplify right side
    606.77x = 271,506.08
  5. Step 5: Solve for x
    x = 271,506.08/606.77
  6. Step 6: Final answer
    x = 447.46

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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.