Home / 818,027.20-1,227,235.53-412,222.33

Finding the Fourth Proportional to 818,027.20, 1,227,235.53 and 412,222.33

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Solution

The fourth proportional to 818,027.20, 1,227,235.53 and 412,222.33 is: 618,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,027.20 : 1,227,235.53 = 412,222.33 : x
  2. Step 2: Convert to fraction form
    818,027.20/1,227,235.53 = 412,222.33/x
  3. Step 3: Cross multiply
    818,027.20x = 1,227,235.53 × 412,222.33
  4. Step 4: Simplify right side
    818,027.20x = 505,893,883,499.21
  5. Step 5: Solve for x
    x = 505,893,883,499.21/818,027.20
  6. Step 6: Final answer
    x = 618,431.62

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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.