Home / 850,651.80-1,275,977.70-259,675.80

Finding the Fourth Proportional to 850,651.80, 1,275,977.70 and 259,675.80

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Solution

The fourth proportional to 850,651.80, 1,275,977.70 and 259,675.80 is: 389,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,651.80 : 1,275,977.70 = 259,675.80 : x
  2. Step 2: Convert to fraction form
    850,651.80/1,275,977.70 = 259,675.80/x
  3. Step 3: Cross multiply
    850,651.80x = 1,275,977.70 × 259,675.80
  4. Step 4: Simplify right side
    850,651.80x = 331,340,530,029.66
  5. Step 5: Solve for x
    x = 331,340,530,029.66/850,651.80
  6. Step 6: Final answer
    x = 389,513.70

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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.