Home / 3,138,929.12-4,707,198.60-1,859,897.60

Finding the Fourth Proportional to 3,138,929.12, 4,707,198.60 and 1,859,897.60

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Solution

The fourth proportional to 3,138,929.12, 4,707,198.60 and 1,859,897.60 is: 2,789,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,929.12 : 4,707,198.60 = 1,859,897.60 : x
  2. Step 2: Convert to fraction form
    3,138,929.12/4,707,198.60 = 1,859,897.60/x
  3. Step 3: Cross multiply
    3,138,929.12x = 4,707,198.60 × 1,859,897.60
  4. Step 4: Simplify right side
    3,138,929.12x = 8,754,907,378,863.36
  5. Step 5: Solve for x
    x = 8,754,907,378,863.36/3,138,929.12
  6. Step 6: Final answer
    x = 2,789,138.28

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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.