Home / 1,362,079.89-1,879,670.15-789,452.21

Finding the Fourth Proportional to 1,362,079.89, 1,879,670.15 and 789,452.21

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Solution

The fourth proportional to 1,362,079.89, 1,879,670.15 and 789,452.21 is: 1,089,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,079.89 : 1,879,670.15 = 789,452.21 : x
  2. Step 2: Convert to fraction form
    1,362,079.89/1,879,670.15 = 789,452.21/x
  3. Step 3: Cross multiply
    1,362,079.89x = 1,879,670.15 × 789,452.21
  4. Step 4: Simplify right side
    1,362,079.89x = 1,483,909,740,642.92
  5. Step 5: Solve for x
    x = 1,483,909,740,642.92/1,362,079.89
  6. Step 6: Final answer
    x = 1,089,443.98

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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.