Home / 739,486.70-1,109,352.60-259,589.96

Finding the Fourth Proportional to 739,486.70, 1,109,352.60 and 259,589.96

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Solution

The fourth proportional to 739,486.70, 1,109,352.60 and 259,589.96 is: 389,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,486.70 : 1,109,352.60 = 259,589.96 : x
  2. Step 2: Convert to fraction form
    739,486.70/1,109,352.60 = 259,589.96/x
  3. Step 3: Cross multiply
    739,486.70x = 1,109,352.60 × 259,589.96
  4. Step 4: Simplify right side
    739,486.70x = 287,976,797,059.90
  5. Step 5: Solve for x
    x = 287,976,797,059.90/739,486.70
  6. Step 6: Final answer
    x = 389,427.96

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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.