Home / 1,379,910.20-2,069,865.30-1,255,907.30

Finding the Fourth Proportional to 1,379,910.20, 2,069,865.30 and 1,255,907.30

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Solution

The fourth proportional to 1,379,910.20, 2,069,865.30 and 1,255,907.30 is: 1,883,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,910.20 : 2,069,865.30 = 1,255,907.30 : x
  2. Step 2: Convert to fraction form
    1,379,910.20/2,069,865.30 = 1,255,907.30/x
  3. Step 3: Cross multiply
    1,379,910.20x = 2,069,865.30 × 1,255,907.30
  4. Step 4: Simplify right side
    1,379,910.20x = 2,599,558,940,286.69
  5. Step 5: Solve for x
    x = 2,599,558,940,286.69/1,379,910.20
  6. Step 6: Final answer
    x = 1,883,860.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.