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Finding the Fourth Proportional to 606.45, 836.87 and 340.88

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Solution

The fourth proportional to 606.45, 836.87 and 340.88 is: 470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.45 : 836.87 = 340.88 : x
  2. Step 2: Convert to fraction form
    606.45/836.87 = 340.88/x
  3. Step 3: Cross multiply
    606.45x = 836.87 × 340.88
  4. Step 4: Simplify right side
    606.45x = 285,273.42
  5. Step 5: Solve for x
    x = 285,273.42/606.45
  6. Step 6: Final answer
    x = 470.40

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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.