Home / 2,138,576.20-3,208,728.30-940,726.60

Finding the Fourth Proportional to 2,138,576.20, 3,208,728.30 and 940,726.60

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Solution

The fourth proportional to 2,138,576.20, 3,208,728.30 and 940,726.60 is: 1,411,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,576.20 : 3,208,728.30 = 940,726.60 : x
  2. Step 2: Convert to fraction form
    2,138,576.20/3,208,728.30 = 940,726.60/x
  3. Step 3: Cross multiply
    2,138,576.20x = 3,208,728.30 × 940,726.60
  4. Step 4: Simplify right side
    2,138,576.20x = 3,018,536,063,982.78
  5. Step 5: Solve for x
    x = 3,018,536,063,982.78/2,138,576.20
  6. Step 6: Final answer
    x = 1,411,469.96

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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.