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Finding the Fourth Proportional to 647,649.60, 970,761.60 and 226,708.80

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Solution

The fourth proportional to 647,649.60, 970,761.60 and 226,708.80 is: 339,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,649.60 : 970,761.60 = 226,708.80 : x
  2. Step 2: Convert to fraction form
    647,649.60/970,761.60 = 226,708.80/x
  3. Step 3: Cross multiply
    647,649.60x = 970,761.60 × 226,708.80
  4. Step 4: Simplify right side
    647,649.60x = 220,080,197,422.08
  5. Step 5: Solve for x
    x = 220,080,197,422.08/647,649.60
  6. Step 6: Final answer
    x = 339,813.69

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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.