Home / 726,025.20-1,089,426.60-326,727.60

Finding the Fourth Proportional to 726,025.20, 1,089,426.60 and 326,727.60

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Solution

The fourth proportional to 726,025.20, 1,089,426.60 and 326,727.60 is: 490,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,025.20 : 1,089,426.60 = 326,727.60 : x
  2. Step 2: Convert to fraction form
    726,025.20/1,089,426.60 = 326,727.60/x
  3. Step 3: Cross multiply
    726,025.20x = 1,089,426.60 × 326,727.60
  4. Step 4: Simplify right side
    726,025.20x = 355,945,738,394.16
  5. Step 5: Solve for x
    x = 355,945,738,394.16/726,025.20
  6. Step 6: Final answer
    x = 490,266.37

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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.