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Finding the Fourth Proportional to 590.18, 813.33 and 484.65

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Solution

The fourth proportional to 590.18, 813.33 and 484.65 is: 667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.18 : 813.33 = 484.65 : x
  2. Step 2: Convert to fraction form
    590.18/813.33 = 484.65/x
  3. Step 3: Cross multiply
    590.18x = 813.33 × 484.65
  4. Step 4: Simplify right side
    590.18x = 394,180.38
  5. Step 5: Solve for x
    x = 394,180.38/590.18
  6. Step 6: Final answer
    x = 667.90

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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.