Home / 810,578.52-1,118,563.56-447,983.64

Finding the Fourth Proportional to 810,578.52, 1,118,563.56 and 447,983.64

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Solution

The fourth proportional to 810,578.52, 1,118,563.56 and 447,983.64 is: 618,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,578.52 : 1,118,563.56 = 447,983.64 : x
  2. Step 2: Convert to fraction form
    810,578.52/1,118,563.56 = 447,983.64/x
  3. Step 3: Cross multiply
    810,578.52x = 1,118,563.56 × 447,983.64
  4. Step 4: Simplify right side
    810,578.52x = 501,098,175,180.16
  5. Step 5: Solve for x
    x = 501,098,175,180.16/810,578.52
  6. Step 6: Final answer
    x = 618,198.19

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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.