Home / 726,540.80-1,089,817.38-253,225.40

Finding the Fourth Proportional to 726,540.80, 1,089,817.38 and 253,225.40

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Solution

The fourth proportional to 726,540.80, 1,089,817.38 and 253,225.40 is: 379,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,540.80 : 1,089,817.38 = 253,225.40 : x
  2. Step 2: Convert to fraction form
    726,540.80/1,089,817.38 = 253,225.40/x
  3. Step 3: Cross multiply
    726,540.80x = 1,089,817.38 × 253,225.40
  4. Step 4: Simplify right side
    726,540.80x = 275,969,441,977.45
  5. Step 5: Solve for x
    x = 275,969,441,977.45/726,540.80
  6. Step 6: Final answer
    x = 379,840.25

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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.