Home / 643,322.20-964,985.78-269,082.68

Finding the Fourth Proportional to 643,322.20, 964,985.78 and 269,082.68

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Solution

The fourth proportional to 643,322.20, 964,985.78 and 269,082.68 is: 403,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,322.20 : 964,985.78 = 269,082.68 : x
  2. Step 2: Convert to fraction form
    643,322.20/964,985.78 = 269,082.68/x
  3. Step 3: Cross multiply
    643,322.20x = 964,985.78 × 269,082.68
  4. Step 4: Simplify right side
    643,322.20x = 259,660,959,844.29
  5. Step 5: Solve for x
    x = 259,660,959,844.29/643,322.20
  6. Step 6: Final answer
    x = 403,625.06

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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.