Home / 1,132,738.40-1,699,107.60-1,089,192.80

Finding the Fourth Proportional to 1,132,738.40, 1,699,107.60 and 1,089,192.80

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Solution

The fourth proportional to 1,132,738.40, 1,699,107.60 and 1,089,192.80 is: 1,633,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,738.40 : 1,699,107.60 = 1,089,192.80 : x
  2. Step 2: Convert to fraction form
    1,132,738.40/1,699,107.60 = 1,089,192.80/x
  3. Step 3: Cross multiply
    1,132,738.40x = 1,699,107.60 × 1,089,192.80
  4. Step 4: Simplify right side
    1,132,738.40x = 1,850,655,764,345.28
  5. Step 5: Solve for x
    x = 1,850,655,764,345.28/1,132,738.40
  6. Step 6: Final answer
    x = 1,633,789.20

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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.