Home / 1,121,144.44-1,680,716.46-411,006.64

Finding the Fourth Proportional to 1,121,144.44, 1,680,716.46 and 411,006.64

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Solution

The fourth proportional to 1,121,144.44, 1,680,716.46 and 411,006.64 is: 616,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,144.44 : 1,680,716.46 = 411,006.64 : x
  2. Step 2: Convert to fraction form
    1,121,144.44/1,680,716.46 = 411,006.64/x
  3. Step 3: Cross multiply
    1,121,144.44x = 1,680,716.46 × 411,006.64
  4. Step 4: Simplify right side
    1,121,144.44x = 690,785,625,017.29
  5. Step 5: Solve for x
    x = 690,785,625,017.29/1,121,144.44
  6. Step 6: Final answer
    x = 616,143.29

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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.