Home / 726,287.80-1,089,431.70-353,039.80

Finding the Fourth Proportional to 726,287.80, 1,089,431.70 and 353,039.80

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Solution

The fourth proportional to 726,287.80, 1,089,431.70 and 353,039.80 is: 529,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,287.80 : 1,089,431.70 = 353,039.80 : x
  2. Step 2: Convert to fraction form
    726,287.80/1,089,431.70 = 353,039.80/x
  3. Step 3: Cross multiply
    726,287.80x = 1,089,431.70 × 353,039.80
  4. Step 4: Simplify right side
    726,287.80x = 384,612,749,481.66
  5. Step 5: Solve for x
    x = 384,612,749,481.66/726,287.80
  6. Step 6: Final answer
    x = 529,559.70

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Similar ratio
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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.