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Finding the Fourth Proportional to 647,609.54, 970,826.24 and 226,655.78

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Solution

The fourth proportional to 647,609.54, 970,826.24 and 226,655.78 is: 339,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,609.54 : 970,826.24 = 226,655.78 : x
  2. Step 2: Convert to fraction form
    647,609.54/970,826.24 = 226,655.78/x
  3. Step 3: Cross multiply
    647,609.54x = 970,826.24 × 226,655.78
  4. Step 4: Simplify right side
    647,609.54x = 220,043,378,671.67
  5. Step 5: Solve for x
    x = 220,043,378,671.67/647,609.54
  6. Step 6: Final answer
    x = 339,777.85

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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.