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Finding the Fourth Proportional to 545,862.30, 818,793.45 and 522,825.90

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Solution

The fourth proportional to 545,862.30, 818,793.45 and 522,825.90 is: 784,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,862.30 : 818,793.45 = 522,825.90 : x
  2. Step 2: Convert to fraction form
    545,862.30/818,793.45 = 522,825.90/x
  3. Step 3: Cross multiply
    545,862.30x = 818,793.45 × 522,825.90
  4. Step 4: Simplify right side
    545,862.30x = 428,086,422,410.36
  5. Step 5: Solve for x
    x = 428,086,422,410.36/545,862.30
  6. Step 6: Final answer
    x = 784,238.85

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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.