Home / 1,121,891.00-1,680,154.38-647,137.04

Finding the Fourth Proportional to 1,121,891.00, 1,680,154.38 and 647,137.04

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Solution

The fourth proportional to 1,121,891.00, 1,680,154.38 and 647,137.04 is: 969,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,891.00 : 1,680,154.38 = 647,137.04 : x
  2. Step 2: Convert to fraction form
    1,121,891.00/1,680,154.38 = 647,137.04/x
  3. Step 3: Cross multiply
    1,121,891.00x = 1,680,154.38 × 647,137.04
  4. Step 4: Simplify right side
    1,121,891.00x = 1,087,290,123,815.46
  5. Step 5: Solve for x
    x = 1,087,290,123,815.46/1,121,891.00
  6. Step 6: Final answer
    x = 969,158.44

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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.