Home / 643,683.20-965,524.80-269,667.20

Finding the Fourth Proportional to 643,683.20, 965,524.80 and 269,667.20

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Solution

The fourth proportional to 643,683.20, 965,524.80 and 269,667.20 is: 404,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,683.20 : 965,524.80 = 269,667.20 : x
  2. Step 2: Convert to fraction form
    643,683.20/965,524.80 = 269,667.20/x
  3. Step 3: Cross multiply
    643,683.20x = 965,524.80 × 269,667.20
  4. Step 4: Simplify right side
    643,683.20x = 260,370,369,346.56
  5. Step 5: Solve for x
    x = 260,370,369,346.56/643,683.20
  6. Step 6: Final answer
    x = 404,500.80

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Similar ratio
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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.