Home / 2,083,427.20-3,120,475.20-1,243,619.20

Finding the Fourth Proportional to 2,083,427.20, 3,120,475.20 and 1,243,619.20

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Solution

The fourth proportional to 2,083,427.20, 3,120,475.20 and 1,243,619.20 is: 1,862,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083,427.20 : 3,120,475.20 = 1,243,619.20 : x
  2. Step 2: Convert to fraction form
    2,083,427.20/3,120,475.20 = 1,243,619.20/x
  3. Step 3: Cross multiply
    2,083,427.20x = 3,120,475.20 × 1,243,619.20
  4. Step 4: Simplify right side
    2,083,427.20x = 3,880,682,871,843.84
  5. Step 5: Solve for x
    x = 3,880,682,871,843.84/2,083,427.20
  6. Step 6: Final answer
    x = 1,862,643.86

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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.