Home / 1,259,183.80-1,888,775.70-726,430.60

Finding the Fourth Proportional to 1,259,183.80, 1,888,775.70 and 726,430.60

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Solution

The fourth proportional to 1,259,183.80, 1,888,775.70 and 726,430.60 is: 1,089,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,183.80 : 1,888,775.70 = 726,430.60 : x
  2. Step 2: Convert to fraction form
    1,259,183.80/1,888,775.70 = 726,430.60/x
  3. Step 3: Cross multiply
    1,259,183.80x = 1,888,775.70 × 726,430.60
  4. Step 4: Simplify right side
    1,259,183.80x = 1,372,064,465,016.42
  5. Step 5: Solve for x
    x = 1,372,064,465,016.42/1,259,183.80
  6. Step 6: Final answer
    x = 1,089,645.90

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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.