Home / 1,180,313.10-1,770,469.65-1,089,771.30

Finding the Fourth Proportional to 1,180,313.10, 1,770,469.65 and 1,089,771.30

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Solution

The fourth proportional to 1,180,313.10, 1,770,469.65 and 1,089,771.30 is: 1,634,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,313.10 : 1,770,469.65 = 1,089,771.30 : x
  2. Step 2: Convert to fraction form
    1,180,313.10/1,770,469.65 = 1,089,771.30/x
  3. Step 3: Cross multiply
    1,180,313.10x = 1,770,469.65 × 1,089,771.30
  4. Step 4: Simplify right side
    1,180,313.10x = 1,929,407,012,091.05
  5. Step 5: Solve for x
    x = 1,929,407,012,091.05/1,180,313.10
  6. Step 6: Final answer
    x = 1,634,656.95

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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.