Home / 818,556.60-1,227,834.90-419,064.60

Finding the Fourth Proportional to 818,556.60, 1,227,834.90 and 419,064.60

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Solution

The fourth proportional to 818,556.60, 1,227,834.90 and 419,064.60 is: 628,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,556.60 : 1,227,834.90 = 419,064.60 : x
  2. Step 2: Convert to fraction form
    818,556.60/1,227,834.90 = 419,064.60/x
  3. Step 3: Cross multiply
    818,556.60x = 1,227,834.90 × 419,064.60
  4. Step 4: Simplify right side
    818,556.60x = 514,542,141,234.54
  5. Step 5: Solve for x
    x = 514,542,141,234.54/818,556.60
  6. Step 6: Final answer
    x = 628,596.90

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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.