Home / 1,229,940.78-1,844,120.87-510,778.55

Finding the Fourth Proportional to 1,229,940.78, 1,844,120.87 and 510,778.55

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Solution

The fourth proportional to 1,229,940.78, 1,844,120.87 and 510,778.55 is: 765,839.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,940.78 : 1,844,120.87 = 510,778.55 : x
  2. Step 2: Convert to fraction form
    1,229,940.78/1,844,120.87 = 510,778.55/x
  3. Step 3: Cross multiply
    1,229,940.78x = 1,844,120.87 × 510,778.55
  4. Step 4: Simplify right side
    1,229,940.78x = 941,937,372,228.84
  5. Step 5: Solve for x
    x = 941,937,372,228.84/1,229,940.78
  6. Step 6: Final answer
    x = 765,839.61

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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.