Home / 643,433.40-965,265.30-269,494.20

Finding the Fourth Proportional to 643,433.40, 965,265.30 and 269,494.20

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Solution

The fourth proportional to 643,433.40, 965,265.30 and 269,494.20 is: 404,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,433.40 : 965,265.30 = 269,494.20 : x
  2. Step 2: Convert to fraction form
    643,433.40/965,265.30 = 269,494.20/x
  3. Step 3: Cross multiply
    643,433.40x = 965,265.30 × 269,494.20
  4. Step 4: Simplify right side
    643,433.40x = 260,133,399,811.26
  5. Step 5: Solve for x
    x = 260,133,399,811.26/643,433.40
  6. Step 6: Final answer
    x = 404,289.55

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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.