Home / 769,399.44-1,062,067.50-688,684.56

Finding the Fourth Proportional to 769,399.44, 1,062,067.50 and 688,684.56

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Solution

The fourth proportional to 769,399.44, 1,062,067.50 and 688,684.56 is: 950,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,399.44 : 1,062,067.50 = 688,684.56 : x
  2. Step 2: Convert to fraction form
    769,399.44/1,062,067.50 = 688,684.56/x
  3. Step 3: Cross multiply
    769,399.44x = 1,062,067.50 × 688,684.56
  4. Step 4: Simplify right side
    769,399.44x = 731,429,488,927.80
  5. Step 5: Solve for x
    x = 731,429,488,927.80/769,399.44
  6. Step 6: Final answer
    x = 950,649.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.