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Finding the Fourth Proportional to 565.99, 849.09 and 391.03

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Solution

The fourth proportional to 565.99, 849.09 and 391.03 is: 586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.99 : 849.09 = 391.03 : x
  2. Step 2: Convert to fraction form
    565.99/849.09 = 391.03/x
  3. Step 3: Cross multiply
    565.99x = 849.09 × 391.03
  4. Step 4: Simplify right side
    565.99x = 332,019.66
  5. Step 5: Solve for x
    x = 332,019.66/565.99
  6. Step 6: Final answer
    x = 586.62

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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.