Home / 1,213,906.40-1,820,859.60-835,992.80

Finding the Fourth Proportional to 1,213,906.40, 1,820,859.60 and 835,992.80

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Solution

The fourth proportional to 1,213,906.40, 1,820,859.60 and 835,992.80 is: 1,253,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,906.40 : 1,820,859.60 = 835,992.80 : x
  2. Step 2: Convert to fraction form
    1,213,906.40/1,820,859.60 = 835,992.80/x
  3. Step 3: Cross multiply
    1,213,906.40x = 1,820,859.60 × 835,992.80
  4. Step 4: Simplify right side
    1,213,906.40x = 1,522,225,515,410.88
  5. Step 5: Solve for x
    x = 1,522,225,515,410.88/1,213,906.40
  6. Step 6: Final answer
    x = 1,253,989.20

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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.