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Finding the Fourth Proportional to 606.60, 836.64 and 440.28

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Solution

The fourth proportional to 606.60, 836.64 and 440.28 is: 607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.60 : 836.64 = 440.28 : x
  2. Step 2: Convert to fraction form
    606.60/836.64 = 440.28/x
  3. Step 3: Cross multiply
    606.60x = 836.64 × 440.28
  4. Step 4: Simplify right side
    606.60x = 368,355.86
  5. Step 5: Solve for x
    x = 368,355.86/606.60
  6. Step 6: Final answer
    x = 607.25

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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.