Home / 2,191,878.60-3,285,744.30-1,294,009.80

Finding the Fourth Proportional to 2,191,878.60, 3,285,744.30 and 1,294,009.80

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Solution

The fourth proportional to 2,191,878.60, 3,285,744.30 and 1,294,009.80 is: 1,939,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,878.60 : 3,285,744.30 = 1,294,009.80 : x
  2. Step 2: Convert to fraction form
    2,191,878.60/3,285,744.30 = 1,294,009.80/x
  3. Step 3: Cross multiply
    2,191,878.60x = 3,285,744.30 × 1,294,009.80
  4. Step 4: Simplify right side
    2,191,878.60x = 4,251,785,324,494.14
  5. Step 5: Solve for x
    x = 4,251,785,324,494.14/2,191,878.60
  6. Step 6: Final answer
    x = 1,939,790.52

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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.