Home / 1,679,984.19-2,519,976.41-669,815.55

Finding the Fourth Proportional to 1,679,984.19, 2,519,976.41 and 669,815.55

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Solution

The fourth proportional to 1,679,984.19, 2,519,976.41 and 669,815.55 is: 1,004,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,984.19 : 2,519,976.41 = 669,815.55 : x
  2. Step 2: Convert to fraction form
    1,679,984.19/2,519,976.41 = 669,815.55/x
  3. Step 3: Cross multiply
    1,679,984.19x = 2,519,976.41 × 669,815.55
  4. Step 4: Simplify right side
    1,679,984.19x = 1,687,919,381,702.10
  5. Step 5: Solve for x
    x = 1,687,919,381,702.10/1,679,984.19
  6. Step 6: Final answer
    x = 1,004,723.37

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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.