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Finding the Fourth Proportional to 607.08, 836.85 and 475.86

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Solution

The fourth proportional to 607.08, 836.85 and 475.86 is: 655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.08 : 836.85 = 475.86 : x
  2. Step 2: Convert to fraction form
    607.08/836.85 = 475.86/x
  3. Step 3: Cross multiply
    607.08x = 836.85 × 475.86
  4. Step 4: Simplify right side
    607.08x = 398,223.44
  5. Step 5: Solve for x
    x = 398,223.44/607.08
  6. Step 6: Final answer
    x = 655.97

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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.