Home / 725,927.40-1,089,279.90-305,245.80

Finding the Fourth Proportional to 725,927.40, 1,089,279.90 and 305,245.80

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Solution

The fourth proportional to 725,927.40, 1,089,279.90 and 305,245.80 is: 458,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,927.40 : 1,089,279.90 = 305,245.80 : x
  2. Step 2: Convert to fraction form
    725,927.40/1,089,279.90 = 305,245.80/x
  3. Step 3: Cross multiply
    725,927.40x = 1,089,279.90 × 305,245.80
  4. Step 4: Simplify right side
    725,927.40x = 332,498,114,499.42
  5. Step 5: Solve for x
    x = 332,498,114,499.42/725,927.40
  6. Step 6: Final answer
    x = 458,032.19

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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.