Home / 726,257.28-1,089,376.56-326,615.52

Finding the Fourth Proportional to 726,257.28, 1,089,376.56 and 326,615.52

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Solution

The fourth proportional to 726,257.28, 1,089,376.56 and 326,615.52 is: 489,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,257.28 : 1,089,376.56 = 326,615.52 : x
  2. Step 2: Convert to fraction form
    726,257.28/1,089,376.56 = 326,615.52/x
  3. Step 3: Cross multiply
    726,257.28x = 1,089,376.56 × 326,615.52
  4. Step 4: Simplify right side
    726,257.28x = 355,807,291,620.21
  5. Step 5: Solve for x
    x = 355,807,291,620.21/726,257.28
  6. Step 6: Final answer
    x = 489,919.07

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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.