Home / 1,379,805.24-1,904,193.90-767,997.12

Finding the Fourth Proportional to 1,379,805.24, 1,904,193.90 and 767,997.12

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Solution

The fourth proportional to 1,379,805.24, 1,904,193.90 and 767,997.12 is: 1,059,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,805.24 : 1,904,193.90 = 767,997.12 : x
  2. Step 2: Convert to fraction form
    1,379,805.24/1,904,193.90 = 767,997.12/x
  3. Step 3: Cross multiply
    1,379,805.24x = 1,904,193.90 × 767,997.12
  4. Step 4: Simplify right side
    1,379,805.24x = 1,462,415,431,121.57
  5. Step 5: Solve for x
    x = 1,462,415,431,121.57/1,379,805.24
  6. Step 6: Final answer
    x = 1,059,870.91

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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.