Home / 2,378,621.40-3,282,499.83-1,290,893.22

Finding the Fourth Proportional to 2,378,621.40, 3,282,499.83 and 1,290,893.22

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Solution

The fourth proportional to 2,378,621.40, 3,282,499.83 and 1,290,893.22 is: 1,781,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,621.40 : 3,282,499.83 = 1,290,893.22 : x
  2. Step 2: Convert to fraction form
    2,378,621.40/3,282,499.83 = 1,290,893.22/x
  3. Step 3: Cross multiply
    2,378,621.40x = 3,282,499.83 × 1,290,893.22
  4. Step 4: Simplify right side
    2,378,621.40x = 4,237,356,775,198.15
  5. Step 5: Solve for x
    x = 4,237,356,775,198.15/2,378,621.40
  6. Step 6: Final answer
    x = 1,781,433.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.