Home / 2,140,906.40-3,211,505.40-681,837.20

Finding the Fourth Proportional to 2,140,906.40, 3,211,505.40 and 681,837.20

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Solution

The fourth proportional to 2,140,906.40, 3,211,505.40 and 681,837.20 is: 1,022,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,906.40 : 3,211,505.40 = 681,837.20 : x
  2. Step 2: Convert to fraction form
    2,140,906.40/3,211,505.40 = 681,837.20/x
  3. Step 3: Cross multiply
    2,140,906.40x = 3,211,505.40 × 681,837.20
  4. Step 4: Simplify right side
    2,140,906.40x = 2,189,723,849,720.88
  5. Step 5: Solve for x
    x = 2,189,723,849,720.88/2,140,906.40
  6. Step 6: Final answer
    x = 1,022,802.23

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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.