Home / 809,701.88-1,213,739.96-276,858.44

Finding the Fourth Proportional to 809,701.88, 1,213,739.96 and 276,858.44

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Solution

The fourth proportional to 809,701.88, 1,213,739.96 and 276,858.44 is: 415,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,701.88 : 1,213,739.96 = 276,858.44 : x
  2. Step 2: Convert to fraction form
    809,701.88/1,213,739.96 = 276,858.44/x
  3. Step 3: Cross multiply
    809,701.88x = 1,213,739.96 × 276,858.44
  4. Step 4: Simplify right side
    809,701.88x = 336,034,151,891.26
  5. Step 5: Solve for x
    x = 336,034,151,891.26/809,701.88
  6. Step 6: Final answer
    x = 415,009.72

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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.