Home / 1,220,530-1,830,795.36-379,081.84

Finding the Fourth Proportional to 1,220,530, 1,830,795.36 and 379,081.84

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Solution

The fourth proportional to 1,220,530, 1,830,795.36 and 379,081.84 is: 568,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,530 : 1,830,795.36 = 379,081.84 : x
  2. Step 2: Convert to fraction form
    1,220,530/1,830,795.36 = 379,081.84/x
  3. Step 3: Cross multiply
    1,220,530x = 1,830,795.36 × 379,081.84
  4. Step 4: Simplify right side
    1,220,530x = 694,021,273,732.26
  5. Step 5: Solve for x
    x = 694,021,273,732.26/1,220,530
  6. Step 6: Final answer
    x = 568,622.87

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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.