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Finding the Fourth Proportional to 646,589.75, 892,229.96 and 360,136.49

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Solution

The fourth proportional to 646,589.75, 892,229.96 and 360,136.49 is: 496,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,589.75 : 892,229.96 = 360,136.49 : x
  2. Step 2: Convert to fraction form
    646,589.75/892,229.96 = 360,136.49/x
  3. Step 3: Cross multiply
    646,589.75x = 892,229.96 × 360,136.49
  4. Step 4: Simplify right side
    646,589.75x = 321,324,564,266.56
  5. Step 5: Solve for x
    x = 321,324,564,266.56/646,589.75
  6. Step 6: Final answer
    x = 496,952.77

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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.