Home / 1,216,843.20-1,826,380.80-618,220.80

Finding the Fourth Proportional to 1,216,843.20, 1,826,380.80 and 618,220.80

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Solution

The fourth proportional to 1,216,843.20, 1,826,380.80 and 618,220.80 is: 927,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,843.20 : 1,826,380.80 = 618,220.80 : x
  2. Step 2: Convert to fraction form
    1,216,843.20/1,826,380.80 = 618,220.80/x
  3. Step 3: Cross multiply
    1,216,843.20x = 1,826,380.80 × 618,220.80
  4. Step 4: Simplify right side
    1,216,843.20x = 1,129,106,599,280.64
  5. Step 5: Solve for x
    x = 1,129,106,599,280.64/1,216,843.20
  6. Step 6: Final answer
    x = 927,898.19

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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.