Home / 811,954.44-1,120,462.70-449,344.40

Finding the Fourth Proportional to 811,954.44, 1,120,462.70 and 449,344.40

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Solution

The fourth proportional to 811,954.44, 1,120,462.70 and 449,344.40 is: 620,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,954.44 : 1,120,462.70 = 449,344.40 : x
  2. Step 2: Convert to fraction form
    811,954.44/1,120,462.70 = 449,344.40/x
  3. Step 3: Cross multiply
    811,954.44x = 1,120,462.70 × 449,344.40
  4. Step 4: Simplify right side
    811,954.44x = 503,473,631,804.85
  5. Step 5: Solve for x
    x = 503,473,631,804.85/811,954.44
  6. Step 6: Final answer
    x = 620,076.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.