Home / 1,189,223.70-1,782,884.19-620,319.39

Finding the Fourth Proportional to 1,189,223.70, 1,782,884.19 and 620,319.39

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Solution

The fourth proportional to 1,189,223.70, 1,782,884.19 and 620,319.39 is: 929,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,223.70 : 1,782,884.19 = 620,319.39 : x
  2. Step 2: Convert to fraction form
    1,189,223.70/1,782,884.19 = 620,319.39/x
  3. Step 3: Cross multiply
    1,189,223.70x = 1,782,884.19 × 620,319.39
  4. Step 4: Simplify right side
    1,189,223.70x = 1,105,957,633,181.44
  5. Step 5: Solve for x
    x = 1,105,957,633,181.44/1,189,223.70
  6. Step 6: Final answer
    x = 929,982.84

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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.