Home / 739,488.70-1,109,355.60-259,591.96

Finding the Fourth Proportional to 739,488.70, 1,109,355.60 and 259,591.96

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Solution

The fourth proportional to 739,488.70, 1,109,355.60 and 259,591.96 is: 389,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,488.70 : 1,109,355.60 = 259,591.96 : x
  2. Step 2: Convert to fraction form
    739,488.70/1,109,355.60 = 259,591.96/x
  3. Step 3: Cross multiply
    739,488.70x = 1,109,355.60 × 259,591.96
  4. Step 4: Simplify right side
    739,488.70x = 287,979,794,540.98
  5. Step 5: Solve for x
    x = 287,979,794,540.98/739,488.70
  6. Step 6: Final answer
    x = 389,430.96

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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.