Home / 1,379,947.88-1,904,328.15-768,087.53

Finding the Fourth Proportional to 1,379,947.88, 1,904,328.15 and 768,087.53

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Solution

The fourth proportional to 1,379,947.88, 1,904,328.15 and 768,087.53 is: 1,059,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,947.88 : 1,904,328.15 = 768,087.53 : x
  2. Step 2: Convert to fraction form
    1,379,947.88/1,904,328.15 = 768,087.53/x
  3. Step 3: Cross multiply
    1,379,947.88x = 1,904,328.15 × 768,087.53
  4. Step 4: Simplify right side
    1,379,947.88x = 1,462,690,705,042.97
  5. Step 5: Solve for x
    x = 1,462,690,705,042.97/1,379,947.88
  6. Step 6: Final answer
    x = 1,059,960.83

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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.