Home / 1,379,958.78-1,904,342.88-768,098.39

Finding the Fourth Proportional to 1,379,958.78, 1,904,342.88 and 768,098.39

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Solution

The fourth proportional to 1,379,958.78, 1,904,342.88 and 768,098.39 is: 1,059,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,958.78 : 1,904,342.88 = 768,098.39 : x
  2. Step 2: Convert to fraction form
    1,379,958.78/1,904,342.88 = 768,098.39/x
  3. Step 3: Cross multiply
    1,379,958.78x = 1,904,342.88 × 768,098.39
  4. Step 4: Simplify right side
    1,379,958.78x = 1,462,722,700,135.96
  5. Step 5: Solve for x
    x = 1,462,722,700,135.96/1,379,958.78
  6. Step 6: Final answer
    x = 1,059,975.65

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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.