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Finding the Fourth Proportional to 590.81, 814.77 and 369.78

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Solution

The fourth proportional to 590.81, 814.77 and 369.78 is: 509.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.81 : 814.77 = 369.78 : x
  2. Step 2: Convert to fraction form
    590.81/814.77 = 369.78/x
  3. Step 3: Cross multiply
    590.81x = 814.77 × 369.78
  4. Step 4: Simplify right side
    590.81x = 301,285.65
  5. Step 5: Solve for x
    x = 301,285.65/590.81
  6. Step 6: Final answer
    x = 509.96

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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.