Home / 2,638,330.74-3,954,807.52-1,121,046.21

Finding the Fourth Proportional to 2,638,330.74, 3,954,807.52 and 1,121,046.21

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Solution

The fourth proportional to 2,638,330.74, 3,954,807.52 and 1,121,046.21 is: 1,680,426.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,330.74 : 3,954,807.52 = 1,121,046.21 : x
  2. Step 2: Convert to fraction form
    2,638,330.74/3,954,807.52 = 1,121,046.21/x
  3. Step 3: Cross multiply
    2,638,330.74x = 3,954,807.52 × 1,121,046.21
  4. Step 4: Simplify right side
    2,638,330.74x = 4,433,521,978,772.88
  5. Step 5: Solve for x
    x = 4,433,521,978,772.88/2,638,330.74
  6. Step 6: Final answer
    x = 1,680,426.91

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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.