Home / 2,979,628.40-4,469,442.60-1,086,431.60

Finding the Fourth Proportional to 2,979,628.40, 4,469,442.60 and 1,086,431.60

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Solution

The fourth proportional to 2,979,628.40, 4,469,442.60 and 1,086,431.60 is: 1,629,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,628.40 : 4,469,442.60 = 1,086,431.60 : x
  2. Step 2: Convert to fraction form
    2,979,628.40/4,469,442.60 = 1,086,431.60/x
  3. Step 3: Cross multiply
    2,979,628.40x = 4,469,442.60 × 1,086,431.60
  4. Step 4: Simplify right side
    2,979,628.40x = 4,855,743,675,026.16
  5. Step 5: Solve for x
    x = 4,855,743,675,026.16/2,979,628.40
  6. Step 6: Final answer
    x = 1,629,647.40

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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.