Home / 2,655,665.40-3,978,249.30-1,455,439.80

Finding the Fourth Proportional to 2,655,665.40, 3,978,249.30 and 1,455,439.80

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Solution

The fourth proportional to 2,655,665.40, 3,978,249.30 and 1,455,439.80 is: 2,180,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655,665.40 : 3,978,249.30 = 1,455,439.80 : x
  2. Step 2: Convert to fraction form
    2,655,665.40/3,978,249.30 = 1,455,439.80/x
  3. Step 3: Cross multiply
    2,655,665.40x = 3,978,249.30 × 1,455,439.80
  4. Step 4: Simplify right side
    2,655,665.40x = 5,790,102,365,542.14
  5. Step 5: Solve for x
    x = 5,790,102,365,542.14/2,655,665.40
  6. Step 6: Final answer
    x = 2,180,283.09

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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.