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Finding the Fourth Proportional to 1,477,879, 2,039,471.78 and 798,815.50

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Solution

The fourth proportional to 1,477,879, 2,039,471.78 and 798,815.50 is: 1,102,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477,879 : 2,039,471.78 = 798,815.50 : x
  2. Step 2: Convert to fraction form
    1,477,879/2,039,471.78 = 798,815.50/x
  3. Step 3: Cross multiply
    1,477,879x = 2,039,471.78 × 798,815.50
  4. Step 4: Simplify right side
    1,477,879x = 1,629,161,669,676.59
  5. Step 5: Solve for x
    x = 1,629,161,669,676.59/1,477,879
  6. Step 6: Final answer
    x = 1,102,364.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.