Home / 726,749.40-1,089,735.30-253,450.20

Finding the Fourth Proportional to 726,749.40, 1,089,735.30 and 253,450.20

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Solution

The fourth proportional to 726,749.40, 1,089,735.30 and 253,450.20 is: 380,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,749.40 : 1,089,735.30 = 253,450.20 : x
  2. Step 2: Convert to fraction form
    726,749.40/1,089,735.30 = 253,450.20/x
  3. Step 3: Cross multiply
    726,749.40x = 1,089,735.30 × 253,450.20
  4. Step 4: Simplify right side
    726,749.40x = 276,193,629,732.06
  5. Step 5: Solve for x
    x = 276,193,629,732.06/726,749.40
  6. Step 6: Final answer
    x = 380,039.71

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1.5x scale

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.