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Finding the Fourth Proportional to 548,408.70, 822,613.05 and 512,979.30

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Solution

The fourth proportional to 548,408.70, 822,613.05 and 512,979.30 is: 769,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,408.70 : 822,613.05 = 512,979.30 : x
  2. Step 2: Convert to fraction form
    548,408.70/822,613.05 = 512,979.30/x
  3. Step 3: Cross multiply
    548,408.70x = 822,613.05 × 512,979.30
  4. Step 4: Simplify right side
    548,408.70x = 421,983,466,559.87
  5. Step 5: Solve for x
    x = 421,983,466,559.87/548,408.70
  6. Step 6: Final answer
    x = 769,468.95

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Similar ratio
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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.