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Finding the Fourth Proportional to 606.40, 836.92 and 340.95

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Solution

The fourth proportional to 606.40, 836.92 and 340.95 is: 470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.40 : 836.92 = 340.95 : x
  2. Step 2: Convert to fraction form
    606.40/836.92 = 340.95/x
  3. Step 3: Cross multiply
    606.40x = 836.92 × 340.95
  4. Step 4: Simplify right side
    606.40x = 285,343.69
  5. Step 5: Solve for x
    x = 285,343.69/606.40
  6. Step 6: Final answer
    x = 470.56

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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.