Home / 814,006.26-1,220,990.36-215,009.24

Finding the Fourth Proportional to 814,006.26, 1,220,990.36 and 215,009.24

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Solution

The fourth proportional to 814,006.26, 1,220,990.36 and 215,009.24 is: 322,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,006.26 : 1,220,990.36 = 215,009.24 : x
  2. Step 2: Convert to fraction form
    814,006.26/1,220,990.36 = 215,009.24/x
  3. Step 3: Cross multiply
    814,006.26x = 1,220,990.36 × 215,009.24
  4. Step 4: Simplify right side
    814,006.26x = 262,524,202,170.93
  5. Step 5: Solve for x
    x = 262,524,202,170.93/814,006.26
  6. Step 6: Final answer
    x = 322,508.82

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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.