Finding the Fourth Proportional to 2,831,759.48, 3,907,809 and 1,542,600.80
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Solution
The fourth proportional to 2,831,759.48, 3,907,809 and 1,542,600.80 is: 2,128,778.71
Step by Step Solution
- Step 1: Write the proportion equation
2,831,759.48 : 3,907,809 = 1,542,600.80 : x - Step 2: Convert to fraction form
2,831,759.48/3,907,809 = 1,542,600.80/x - Step 3: Cross multiply
2,831,759.48x = 3,907,809 × 1,542,600.80 - Step 4: Simplify right side
2,831,759.48x = 6,028,189,289,647.20 - Step 5: Solve for x
x = 6,028,189,289,647.20/2,831,759.48 - Step 6: Final answer
x = 2,128,778.71
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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.