Home / 789,361.86-1,089,403.79-483,641.13

Finding the Fourth Proportional to 789,361.86, 1,089,403.79 and 483,641.13

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Solution

The fourth proportional to 789,361.86, 1,089,403.79 and 483,641.13 is: 667,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,361.86 : 1,089,403.79 = 483,641.13 : x
  2. Step 2: Convert to fraction form
    789,361.86/1,089,403.79 = 483,641.13/x
  3. Step 3: Cross multiply
    789,361.86x = 1,089,403.79 × 483,641.13
  4. Step 4: Simplify right side
    789,361.86x = 526,880,477,603.68
  5. Step 5: Solve for x
    x = 526,880,477,603.68/789,361.86
  6. Step 6: Final answer
    x = 667,476.48

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Double scale
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1.5x scale

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.