Home / 1,379,912.77-1,904,265.07-768,055.78

Finding the Fourth Proportional to 1,379,912.77, 1,904,265.07 and 768,055.78

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Solution

The fourth proportional to 1,379,912.77, 1,904,265.07 and 768,055.78 is: 1,059,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,912.77 : 1,904,265.07 = 768,055.78 : x
  2. Step 2: Convert to fraction form
    1,379,912.77/1,904,265.07 = 768,055.78/x
  3. Step 3: Cross multiply
    1,379,912.77x = 1,904,265.07 × 768,055.78
  4. Step 4: Simplify right side
    1,379,912.77x = 1,462,581,793,665.60
  5. Step 5: Solve for x
    x = 1,462,581,793,665.60/1,379,912.77
  6. Step 6: Final answer
    x = 1,059,908.88

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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.