Home / 1,991,581.48-2,987,367.66-853,605.80

Finding the Fourth Proportional to 1,991,581.48, 2,987,367.66 and 853,605.80

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Solution

The fourth proportional to 1,991,581.48, 2,987,367.66 and 853,605.80 is: 1,280,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,581.48 : 2,987,367.66 = 853,605.80 : x
  2. Step 2: Convert to fraction form
    1,991,581.48/2,987,367.66 = 853,605.80/x
  3. Step 3: Cross multiply
    1,991,581.48x = 2,987,367.66 × 853,605.80
  4. Step 4: Simplify right side
    1,991,581.48x = 2,550,034,360,775.24
  5. Step 5: Solve for x
    x = 2,550,034,360,775.24/1,991,581.48
  6. Step 6: Final answer
    x = 1,280,406.74

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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.