Home / 1,419,964.67-2,128,369.32-1,081,890.76

Finding the Fourth Proportional to 1,419,964.67, 2,128,369.32 and 1,081,890.76

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Solution

The fourth proportional to 1,419,964.67, 2,128,369.32 and 1,081,890.76 is: 1,621,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,964.67 : 2,128,369.32 = 1,081,890.76 : x
  2. Step 2: Convert to fraction form
    1,419,964.67/2,128,369.32 = 1,081,890.76/x
  3. Step 3: Cross multiply
    1,419,964.67x = 2,128,369.32 × 1,081,890.76
  4. Step 4: Simplify right side
    1,419,964.67x = 2,302,663,107,826.64
  5. Step 5: Solve for x
    x = 2,302,663,107,826.64/1,419,964.67
  6. Step 6: Final answer
    x = 1,621,634.09

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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.