Home / 2,145,719.40-3,214,892.70-1,397,380.20

Finding the Fourth Proportional to 2,145,719.40, 3,214,892.70 and 1,397,380.20

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Solution

The fourth proportional to 2,145,719.40, 3,214,892.70 and 1,397,380.20 is: 2,093,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,719.40 : 3,214,892.70 = 1,397,380.20 : x
  2. Step 2: Convert to fraction form
    2,145,719.40/3,214,892.70 = 1,397,380.20/x
  3. Step 3: Cross multiply
    2,145,719.40x = 3,214,892.70 × 1,397,380.20
  4. Step 4: Simplify right side
    2,145,719.40x = 4,492,427,404,104.54
  5. Step 5: Solve for x
    x = 4,492,427,404,104.54/2,145,719.40
  6. Step 6: Final answer
    x = 2,093,669.57

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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.