Home / 643,255.70-965,344.35-269,546.90

Finding the Fourth Proportional to 643,255.70, 965,344.35 and 269,546.90

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Solution

The fourth proportional to 643,255.70, 965,344.35 and 269,546.90 is: 404,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,255.70 : 965,344.35 = 269,546.90 : x
  2. Step 2: Convert to fraction form
    643,255.70/965,344.35 = 269,546.90/x
  3. Step 3: Cross multiply
    643,255.70x = 965,344.35 × 269,546.90
  4. Step 4: Simplify right side
    643,255.70x = 260,205,576,975.02
  5. Step 5: Solve for x
    x = 260,205,576,975.02/643,255.70
  6. Step 6: Final answer
    x = 404,513.44

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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.