Home / 726,355.96-1,089,539.40-253,040.56

Finding the Fourth Proportional to 726,355.96, 1,089,539.40 and 253,040.56

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Solution

The fourth proportional to 726,355.96, 1,089,539.40 and 253,040.56 is: 379,562.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,355.96 : 1,089,539.40 = 253,040.56 : x
  2. Step 2: Convert to fraction form
    726,355.96/1,089,539.40 = 253,040.56/x
  3. Step 3: Cross multiply
    726,355.96x = 1,089,539.40 × 253,040.56
  4. Step 4: Simplify right side
    726,355.96x = 275,697,659,918.06
  5. Step 5: Solve for x
    x = 275,697,659,918.06/726,355.96
  6. Step 6: Final answer
    x = 379,562.74

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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.