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Finding the Fourth Proportional to 503,552.20, 694,745.22 and 285,724.84

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Solution

The fourth proportional to 503,552.20, 694,745.22 and 285,724.84 is: 394,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,552.20 : 694,745.22 = 285,724.84 : x
  2. Step 2: Convert to fraction form
    503,552.20/694,745.22 = 285,724.84/x
  3. Step 3: Cross multiply
    503,552.20x = 694,745.22 × 285,724.84
  4. Step 4: Simplify right side
    503,552.20x = 198,505,966,825.27
  5. Step 5: Solve for x
    x = 198,505,966,825.27/503,552.20
  6. Step 6: Final answer
    x = 394,211.30

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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.