Home / 1,661,121.80-2,491,553.10-650,047.40

Finding the Fourth Proportional to 1,661,121.80, 2,491,553.10 and 650,047.40

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Solution

The fourth proportional to 1,661,121.80, 2,491,553.10 and 650,047.40 is: 975,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,121.80 : 2,491,553.10 = 650,047.40 : x
  2. Step 2: Convert to fraction form
    1,661,121.80/2,491,553.10 = 650,047.40/x
  3. Step 3: Cross multiply
    1,661,121.80x = 2,491,553.10 × 650,047.40
  4. Step 4: Simplify right side
    1,661,121.80x = 1,619,627,614,616.94
  5. Step 5: Solve for x
    x = 1,619,627,614,616.94/1,661,121.80
  6. Step 6: Final answer
    x = 975,020.38

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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.