Home / 1,991,607.08-2,987,406.06-853,631.39

Finding the Fourth Proportional to 1,991,607.08, 2,987,406.06 and 853,631.39

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Solution

The fourth proportional to 1,991,607.08, 2,987,406.06 and 853,631.39 is: 1,280,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,607.08 : 2,987,406.06 = 853,631.39 : x
  2. Step 2: Convert to fraction form
    1,991,607.08/2,987,406.06 = 853,631.39/x
  3. Step 3: Cross multiply
    1,991,607.08x = 2,987,406.06 × 853,631.39
  4. Step 4: Simplify right side
    1,991,607.08x = 2,550,143,591,759.62
  5. Step 5: Solve for x
    x = 2,550,143,591,759.62/1,991,607.08
  6. Step 6: Final answer
    x = 1,280,445.14

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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.