Home / 1,207,914.80-1,811,872.20-809,783.60

Finding the Fourth Proportional to 1,207,914.80, 1,811,872.20 and 809,783.60

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Solution

The fourth proportional to 1,207,914.80, 1,811,872.20 and 809,783.60 is: 1,214,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,914.80 : 1,811,872.20 = 809,783.60 : x
  2. Step 2: Convert to fraction form
    1,207,914.80/1,811,872.20 = 809,783.60/x
  3. Step 3: Cross multiply
    1,207,914.80x = 1,811,872.20 × 809,783.60
  4. Step 4: Simplify right side
    1,207,914.80x = 1,467,224,392,855.92
  5. Step 5: Solve for x
    x = 1,467,224,392,855.92/1,207,914.80
  6. Step 6: Final answer
    x = 1,214,675.40

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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.