Home / 889,960.90-1,338,729.64-806,724.82

Finding the Fourth Proportional to 889,960.90, 1,338,729.64 and 806,724.82

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Solution

The fourth proportional to 889,960.90, 1,338,729.64 and 806,724.82 is: 1,213,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,960.90 : 1,338,729.64 = 806,724.82 : x
  2. Step 2: Convert to fraction form
    889,960.90/1,338,729.64 = 806,724.82/x
  3. Step 3: Cross multiply
    889,960.90x = 1,338,729.64 × 806,724.82
  4. Step 4: Simplify right side
    889,960.90x = 1,079,986,427,857.66
  5. Step 5: Solve for x
    x = 1,079,986,427,857.66/889,960.90
  6. Step 6: Final answer
    x = 1,213,521.21

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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.