Home / 2,120,223.92-3,172,310.61-1,256,122.94

Finding the Fourth Proportional to 2,120,223.92, 3,172,310.61 and 1,256,122.94

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Solution

The fourth proportional to 2,120,223.92, 3,172,310.61 and 1,256,122.94 is: 1,879,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,223.92 : 3,172,310.61 = 1,256,122.94 : x
  2. Step 2: Convert to fraction form
    2,120,223.92/3,172,310.61 = 1,256,122.94/x
  3. Step 3: Cross multiply
    2,120,223.92x = 3,172,310.61 × 1,256,122.94
  4. Step 4: Simplify right side
    2,120,223.92x = 3,984,812,130,026.39
  5. Step 5: Solve for x
    x = 3,984,812,130,026.39/2,120,223.92
  6. Step 6: Final answer
    x = 1,879,429.85

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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.