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Finding the Fourth Proportional to 606.42, 836.62 and 440.27

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Solution

The fourth proportional to 606.42, 836.62 and 440.27 is: 607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.42 : 836.62 = 440.27 : x
  2. Step 2: Convert to fraction form
    606.42/836.62 = 440.27/x
  3. Step 3: Cross multiply
    606.42x = 836.62 × 440.27
  4. Step 4: Simplify right side
    606.42x = 368,342.24
  5. Step 5: Solve for x
    x = 368,342.24/606.42
  6. Step 6: Final answer
    x = 607.40

Related Problems

Find fourth proportional to 303.21, 418.31 and 220.14
Half scale
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Double scale
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Similar ratio
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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.