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Finding the Fourth Proportional to 533,125.20, 800,125.20 and 515,629.20

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Solution

The fourth proportional to 533,125.20, 800,125.20 and 515,629.20 is: 773,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,125.20 : 800,125.20 = 515,629.20 : x
  2. Step 2: Convert to fraction form
    533,125.20/800,125.20 = 515,629.20/x
  3. Step 3: Cross multiply
    533,125.20x = 800,125.20 × 515,629.20
  4. Step 4: Simplify right side
    533,125.20x = 412,567,916,775.84
  5. Step 5: Solve for x
    x = 412,567,916,775.84/533,125.20
  6. Step 6: Final answer
    x = 773,866.85

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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.