Home / 2,660,999.40-3,986,906.40-1,238,137.20

Finding the Fourth Proportional to 2,660,999.40, 3,986,906.40 and 1,238,137.20

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Solution

The fourth proportional to 2,660,999.40, 3,986,906.40 and 1,238,137.20 is: 1,855,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,999.40 : 3,986,906.40 = 1,238,137.20 : x
  2. Step 2: Convert to fraction form
    2,660,999.40/3,986,906.40 = 1,238,137.20/x
  3. Step 3: Cross multiply
    2,660,999.40x = 3,986,906.40 × 1,238,137.20
  4. Step 4: Simplify right side
    2,660,999.40x = 4,936,337,126,758.08
  5. Step 5: Solve for x
    x = 4,936,337,126,758.08/2,660,999.40
  6. Step 6: Final answer
    x = 1,855,068.86

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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.