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Finding the Fourth Proportional to 522,043.20, 782,481.60 and 297,511.20

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Solution

The fourth proportional to 522,043.20, 782,481.60 and 297,511.20 is: 445,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,043.20 : 782,481.60 = 297,511.20 : x
  2. Step 2: Convert to fraction form
    522,043.20/782,481.60 = 297,511.20/x
  3. Step 3: Cross multiply
    522,043.20x = 782,481.60 × 297,511.20
  4. Step 4: Simplify right side
    522,043.20x = 232,797,039,793.92
  5. Step 5: Solve for x
    x = 232,797,039,793.92/522,043.20
  6. Step 6: Final answer
    x = 445,934.44

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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.