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Finding the Fourth Proportional to 576.34, 794.60 and 471.31

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Solution

The fourth proportional to 576.34, 794.60 and 471.31 is: 649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.34 : 794.60 = 471.31 : x
  2. Step 2: Convert to fraction form
    576.34/794.60 = 471.31/x
  3. Step 3: Cross multiply
    576.34x = 794.60 × 471.31
  4. Step 4: Simplify right side
    576.34x = 374,502.93
  5. Step 5: Solve for x
    x = 374,502.93/576.34
  6. Step 6: Final answer
    x = 649.80

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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.