Home / 818,990.53-1,228,584.21-774,200.77

Finding the Fourth Proportional to 818,990.53, 1,228,584.21 and 774,200.77

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Solution

The fourth proportional to 818,990.53, 1,228,584.21 and 774,200.77 is: 1,161,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,990.53 : 1,228,584.21 = 774,200.77 : x
  2. Step 2: Convert to fraction form
    818,990.53/1,228,584.21 = 774,200.77/x
  3. Step 3: Cross multiply
    818,990.53x = 1,228,584.21 × 774,200.77
  4. Step 4: Simplify right side
    818,990.53x = 951,170,841,391.84
  5. Step 5: Solve for x
    x = 951,170,841,391.84/818,990.53
  6. Step 6: Final answer
    x = 1,161,394.19

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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.