Home / 1,676,578.20-2,313,979.87-988,209.88

Finding the Fourth Proportional to 1,676,578.20, 2,313,979.87 and 988,209.88

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Solution

The fourth proportional to 1,676,578.20, 2,313,979.87 and 988,209.88 is: 1,363,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,578.20 : 2,313,979.87 = 988,209.88 : x
  2. Step 2: Convert to fraction form
    1,676,578.20/2,313,979.87 = 988,209.88/x
  3. Step 3: Cross multiply
    1,676,578.20x = 2,313,979.87 × 988,209.88
  4. Step 4: Simplify right side
    1,676,578.20x = 2,286,697,764,292.12
  5. Step 5: Solve for x
    x = 2,286,697,764,292.12/1,676,578.20
  6. Step 6: Final answer
    x = 1,363,907.61

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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.