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Finding the Fourth Proportional to 591.42, 813.96 and 472.96

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Solution

The fourth proportional to 591.42, 813.96 and 472.96 is: 650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.42 : 813.96 = 472.96 : x
  2. Step 2: Convert to fraction form
    591.42/813.96 = 472.96/x
  3. Step 3: Cross multiply
    591.42x = 813.96 × 472.96
  4. Step 4: Simplify right side
    591.42x = 384,970.52
  5. Step 5: Solve for x
    x = 384,970.52/591.42
  6. Step 6: Final answer
    x = 650.93

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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.