Home / 2,485,117.32-3,722,804.28-1,287,825

Finding the Fourth Proportional to 2,485,117.32, 3,722,804.28 and 1,287,825

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Solution

The fourth proportional to 2,485,117.32, 3,722,804.28 and 1,287,825 is: 1,929,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,117.32 : 3,722,804.28 = 1,287,825 : x
  2. Step 2: Convert to fraction form
    2,485,117.32/3,722,804.28 = 1,287,825/x
  3. Step 3: Cross multiply
    2,485,117.32x = 3,722,804.28 × 1,287,825
  4. Step 4: Simplify right side
    2,485,117.32x = 4,794,320,421,891
  5. Step 5: Solve for x
    x = 4,794,320,421,891/2,485,117.32
  6. Step 6: Final answer
    x = 1,929,212.91

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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.