Home / 1,815,431.60-2,718,481.80-1,339,540.40

Finding the Fourth Proportional to 1,815,431.60, 2,718,481.80 and 1,339,540.40

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Solution

The fourth proportional to 1,815,431.60, 2,718,481.80 and 1,339,540.40 is: 2,005,868.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,431.60 : 2,718,481.80 = 1,339,540.40 : x
  2. Step 2: Convert to fraction form
    1,815,431.60/2,718,481.80 = 1,339,540.40/x
  3. Step 3: Cross multiply
    1,815,431.60x = 2,718,481.80 × 1,339,540.40
  4. Step 4: Simplify right side
    1,815,431.60x = 3,641,516,197,764.72
  5. Step 5: Solve for x
    x = 3,641,516,197,764.72/1,815,431.60
  6. Step 6: Final answer
    x = 2,005,868.02

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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.