Home / 1,362,134.48-1,879,745.56-789,506.80

Finding the Fourth Proportional to 1,362,134.48, 1,879,745.56 and 789,506.80

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Solution

The fourth proportional to 1,362,134.48, 1,879,745.56 and 789,506.80 is: 1,089,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,134.48 : 1,879,745.56 = 789,506.80 : x
  2. Step 2: Convert to fraction form
    1,362,134.48/1,879,745.56 = 789,506.80/x
  3. Step 3: Cross multiply
    1,362,134.48x = 1,879,745.56 × 789,506.80
  4. Step 4: Simplify right side
    1,362,134.48x = 1,484,071,901,889.81
  5. Step 5: Solve for x
    x = 1,484,071,901,889.81/1,362,134.48
  6. Step 6: Final answer
    x = 1,089,519.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.