Home / 2,631,279.60-3,943,857.60-1,211,479.20

Finding the Fourth Proportional to 2,631,279.60, 3,943,857.60 and 1,211,479.20

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Solution

The fourth proportional to 2,631,279.60, 3,943,857.60 and 1,211,479.20 is: 1,815,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,279.60 : 3,943,857.60 = 1,211,479.20 : x
  2. Step 2: Convert to fraction form
    2,631,279.60/3,943,857.60 = 1,211,479.20/x
  3. Step 3: Cross multiply
    2,631,279.60x = 3,943,857.60 × 1,211,479.20
  4. Step 4: Simplify right side
    2,631,279.60x = 4,777,901,450,161.92
  5. Step 5: Solve for x
    x = 4,777,901,450,161.92/2,631,279.60
  6. Step 6: Final answer
    x = 1,815,809.10

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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.