Home / 726,500.88-1,089,740.36-326,859.44

Finding the Fourth Proportional to 726,500.88, 1,089,740.36 and 326,859.44

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Solution

The fourth proportional to 726,500.88, 1,089,740.36 and 326,859.44 is: 490,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,500.88 : 1,089,740.36 = 326,859.44 : x
  2. Step 2: Convert to fraction form
    726,500.88/1,089,740.36 = 326,859.44/x
  3. Step 3: Cross multiply
    726,500.88x = 1,089,740.36 × 326,859.44
  4. Step 4: Simplify right side
    726,500.88x = 356,191,919,183.45
  5. Step 5: Solve for x
    x = 356,191,919,183.45/726,500.88
  6. Step 6: Final answer
    x = 490,284.22

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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.