Home / 1,991,866.56-2,987,793.90-853,891.08

Finding the Fourth Proportional to 1,991,866.56, 2,987,793.90 and 853,891.08

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Solution

The fourth proportional to 1,991,866.56, 2,987,793.90 and 853,891.08 is: 1,280,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,866.56 : 2,987,793.90 = 853,891.08 : x
  2. Step 2: Convert to fraction form
    1,991,866.56/2,987,793.90 = 853,891.08/x
  3. Step 3: Cross multiply
    1,991,866.56x = 2,987,793.90 × 853,891.08
  4. Step 4: Simplify right side
    1,991,866.56x = 2,551,250,560,088.41
  5. Step 5: Solve for x
    x = 2,551,250,560,088.41/1,991,866.56
  6. Step 6: Final answer
    x = 1,280,834.07

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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.