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Finding the Fourth Proportional to 512,843.37, 769,490.61 and 272,900.73

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Solution

The fourth proportional to 512,843.37, 769,490.61 and 272,900.73 is: 409,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,843.37 : 769,490.61 = 272,900.73 : x
  2. Step 2: Convert to fraction form
    512,843.37/769,490.61 = 272,900.73/x
  3. Step 3: Cross multiply
    512,843.37x = 769,490.61 × 272,900.73
  4. Step 4: Simplify right side
    512,843.37x = 209,994,549,197.15
  5. Step 5: Solve for x
    x = 209,994,549,197.15/512,843.37
  6. Step 6: Final answer
    x = 409,471.12

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1.5x scale

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.