Finding the Fourth Proportional to 1,513,563.36, 2,089,571.76 and 1,004,961.12
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Solution
The fourth proportional to 1,513,563.36, 2,089,571.76 and 1,004,961.12 is: 1,387,413.59
Step by Step Solution
- Step 1: Write the proportion equation
1,513,563.36 : 2,089,571.76 = 1,004,961.12 : x - Step 2: Convert to fraction form
1,513,563.36/2,089,571.76 = 1,004,961.12/x - Step 3: Cross multiply
1,513,563.36x = 2,089,571.76 × 1,004,961.12 - Step 4: Simplify right side
1,513,563.36x = 2,099,938,376,249.97 - Step 5: Solve for x
x = 2,099,938,376,249.97/1,513,563.36 - Step 6: Final answer
x = 1,387,413.59
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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.