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Finding the Fourth Proportional to 1,626.99, 2,440.85 and 516.47

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Solution

The fourth proportional to 1,626.99, 2,440.85 and 516.47 is: 774.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.99 : 2,440.85 = 516.47 : x
  2. Step 2: Convert to fraction form
    1,626.99/2,440.85 = 516.47/x
  3. Step 3: Cross multiply
    1,626.99x = 2,440.85 × 516.47
  4. Step 4: Simplify right side
    1,626.99x = 1,260,625.80
  5. Step 5: Solve for x
    x = 1,260,625.80/1,626.99
  6. Step 6: Final answer
    x = 774.82

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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.