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Finding the Fourth Proportional to 580,083.27, 800,662.07 and 396,396.21

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Solution

The fourth proportional to 580,083.27, 800,662.07 and 396,396.21 is: 547,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,083.27 : 800,662.07 = 396,396.21 : x
  2. Step 2: Convert to fraction form
    580,083.27/800,662.07 = 396,396.21/x
  3. Step 3: Cross multiply
    580,083.27x = 800,662.07 × 396,396.21
  4. Step 4: Simplify right side
    580,083.27x = 317,379,405,046.91
  5. Step 5: Solve for x
    x = 317,379,405,046.91/580,083.27
  6. Step 6: Final answer
    x = 547,127.32

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1.5x scale

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.