Home / 815,511.30-1,222,064.10-591,343.80

Finding the Fourth Proportional to 815,511.30, 1,222,064.10 and 591,343.80

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Solution

The fourth proportional to 815,511.30, 1,222,064.10 and 591,343.80 is: 886,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,511.30 : 1,222,064.10 = 591,343.80 : x
  2. Step 2: Convert to fraction form
    815,511.30/1,222,064.10 = 591,343.80/x
  3. Step 3: Cross multiply
    815,511.30x = 1,222,064.10 × 591,343.80
  4. Step 4: Simplify right side
    815,511.30x = 722,660,028,737.58
  5. Step 5: Solve for x
    x = 722,660,028,737.58/815,511.30
  6. Step 6: Final answer
    x = 886,143.49

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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.