Home / 2,120,223.42-3,172,309.86-1,256,122.44

Finding the Fourth Proportional to 2,120,223.42, 3,172,309.86 and 1,256,122.44

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Solution

The fourth proportional to 2,120,223.42, 3,172,309.86 and 1,256,122.44 is: 1,879,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,223.42 : 3,172,309.86 = 1,256,122.44 : x
  2. Step 2: Convert to fraction form
    2,120,223.42/3,172,309.86 = 1,256,122.44/x
  3. Step 3: Cross multiply
    2,120,223.42x = 3,172,309.86 × 1,256,122.44
  4. Step 4: Simplify right side
    2,120,223.42x = 3,984,809,601,779.26
  5. Step 5: Solve for x
    x = 3,984,809,601,779.26/2,120,223.42
  6. Step 6: Final answer
    x = 1,879,429.10

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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.