Home / 818,991.53-1,228,585.71-774,201.77

Finding the Fourth Proportional to 818,991.53, 1,228,585.71 and 774,201.77

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Solution

The fourth proportional to 818,991.53, 1,228,585.71 and 774,201.77 is: 1,161,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,991.53 : 1,228,585.71 = 774,201.77 : x
  2. Step 2: Convert to fraction form
    818,991.53/1,228,585.71 = 774,201.77/x
  3. Step 3: Cross multiply
    818,991.53x = 1,228,585.71 × 774,201.77
  4. Step 4: Simplify right side
    818,991.53x = 951,173,231,278.71
  5. Step 5: Solve for x
    x = 951,173,231,278.71/818,991.53
  6. Step 6: Final answer
    x = 1,161,395.69

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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.