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Finding the Fourth Proportional to 606.74, 836.98 and 396.77

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Solution

The fourth proportional to 606.74, 836.98 and 396.77 is: 547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.74 : 836.98 = 396.77 : x
  2. Step 2: Convert to fraction form
    606.74/836.98 = 396.77/x
  3. Step 3: Cross multiply
    606.74x = 836.98 × 396.77
  4. Step 4: Simplify right side
    606.74x = 332,092.67
  5. Step 5: Solve for x
    x = 332,092.67/606.74
  6. Step 6: Final answer
    x = 547.34

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1.5x scale

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.