Home / 725,763.89-1,089,065.64-299,220.21

Finding the Fourth Proportional to 725,763.89, 1,089,065.64 and 299,220.21

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Solution

The fourth proportional to 725,763.89, 1,089,065.64 and 299,220.21 is: 449,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,763.89 : 1,089,065.64 = 299,220.21 : x
  2. Step 2: Convert to fraction form
    725,763.89/1,089,065.64 = 299,220.21/x
  3. Step 3: Cross multiply
    725,763.89x = 1,089,065.64 × 299,220.21
  4. Step 4: Simplify right side
    725,763.89x = 325,870,449,504.58
  5. Step 5: Solve for x
    x = 325,870,449,504.58/725,763.89
  6. Step 6: Final answer
    x = 449,003.39

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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.