Home / 2,781,920.80-4,171,844.40-984,109.60

Finding the Fourth Proportional to 2,781,920.80, 4,171,844.40 and 984,109.60

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Solution

The fourth proportional to 2,781,920.80, 4,171,844.40 and 984,109.60 is: 1,475,797.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,920.80 : 4,171,844.40 = 984,109.60 : x
  2. Step 2: Convert to fraction form
    2,781,920.80/4,171,844.40 = 984,109.60/x
  3. Step 3: Cross multiply
    2,781,920.80x = 4,171,844.40 × 984,109.60
  4. Step 4: Simplify right side
    2,781,920.80x = 4,105,552,123,746.24
  5. Step 5: Solve for x
    x = 4,105,552,123,746.24/2,781,920.80
  6. Step 6: Final answer
    x = 1,475,797.63

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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.