Home / 1,815,511.60-2,718,601.80-1,339,620.40

Finding the Fourth Proportional to 1,815,511.60, 2,718,601.80 and 1,339,620.40

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Solution

The fourth proportional to 1,815,511.60, 2,718,601.80 and 1,339,620.40 is: 2,005,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,511.60 : 2,718,601.80 = 1,339,620.40 : x
  2. Step 2: Convert to fraction form
    1,815,511.60/2,718,601.80 = 1,339,620.40/x
  3. Step 3: Cross multiply
    1,815,511.60x = 2,718,601.80 × 1,339,620.40
  4. Step 4: Simplify right side
    1,815,511.60x = 3,641,894,430,756.72
  5. Step 5: Solve for x
    x = 3,641,894,430,756.72/1,815,511.60
  6. Step 6: Final answer
    x = 2,005,987.97

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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.