Home / 850,619.85-1,275,887.37-318,101.73

Finding the Fourth Proportional to 850,619.85, 1,275,887.37 and 318,101.73

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Solution

The fourth proportional to 850,619.85, 1,275,887.37 and 318,101.73 is: 477,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,619.85 : 1,275,887.37 = 318,101.73 : x
  2. Step 2: Convert to fraction form
    850,619.85/1,275,887.37 = 318,101.73/x
  3. Step 3: Cross multiply
    850,619.85x = 1,275,887.37 × 318,101.73
  4. Step 4: Simplify right side
    850,619.85x = 405,861,979,682.15
  5. Step 5: Solve for x
    x = 405,861,979,682.15/850,619.85
  6. Step 6: Final answer
    x = 477,136.74

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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.