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Finding the Fourth Proportional to 533,489.20, 800,797.76 and 521,441.80

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Solution

The fourth proportional to 533,489.20, 800,797.76 and 521,441.80 is: 782,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,489.20 : 800,797.76 = 521,441.80 : x
  2. Step 2: Convert to fraction form
    533,489.20/800,797.76 = 521,441.80/x
  3. Step 3: Cross multiply
    533,489.20x = 800,797.76 × 521,441.80
  4. Step 4: Simplify right side
    533,489.20x = 417,569,425,410.37
  5. Step 5: Solve for x
    x = 417,569,425,410.37/533,489.20
  6. Step 6: Final answer
    x = 782,713.92

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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.