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Finding the Fourth Proportional to 836.06, 1,253.37 and 471.38

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Solution

The fourth proportional to 836.06, 1,253.37 and 471.38 is: 706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.06 : 1,253.37 = 471.38 : x
  2. Step 2: Convert to fraction form
    836.06/1,253.37 = 471.38/x
  3. Step 3: Cross multiply
    836.06x = 1,253.37 × 471.38
  4. Step 4: Simplify right side
    836.06x = 590,813.55
  5. Step 5: Solve for x
    x = 590,813.55/836.06
  6. Step 6: Final answer
    x = 706.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.