Home / 1,102,872.76-1,521,785.44-689,360.60

Finding the Fourth Proportional to 1,102,872.76, 1,521,785.44 and 689,360.60

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Solution

The fourth proportional to 1,102,872.76, 1,521,785.44 and 689,360.60 is: 951,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,872.76 : 1,521,785.44 = 689,360.60 : x
  2. Step 2: Convert to fraction form
    1,102,872.76/1,521,785.44 = 689,360.60/x
  3. Step 3: Cross multiply
    1,102,872.76x = 1,521,785.44 × 689,360.60
  4. Step 4: Simplify right side
    1,102,872.76x = 1,049,058,923,989.66
  5. Step 5: Solve for x
    x = 1,049,058,923,989.66/1,102,872.76
  6. Step 6: Final answer
    x = 951,205.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.