Home / 1,379,959.78-1,904,344.26-768,099.39

Finding the Fourth Proportional to 1,379,959.78, 1,904,344.26 and 768,099.39

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Solution

The fourth proportional to 1,379,959.78, 1,904,344.26 and 768,099.39 is: 1,059,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,959.78 : 1,904,344.26 = 768,099.39 : x
  2. Step 2: Convert to fraction form
    1,379,959.78/1,904,344.26 = 768,099.39/x
  3. Step 3: Cross multiply
    1,379,959.78x = 1,904,344.26 × 768,099.39
  4. Step 4: Simplify right side
    1,379,959.78x = 1,462,725,664,456.00
  5. Step 5: Solve for x
    x = 1,462,725,664,456.00/1,379,959.78
  6. Step 6: Final answer
    x = 1,059,977.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.