Finding the Fourth Proportional to 1,362,261.78, 1,879,921.67 and 789,634.08
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Solution
The fourth proportional to 1,362,261.78, 1,879,921.67 and 789,634.08 is: 1,089,695.27
Step by Step Solution
- Step 1: Write the proportion equation
1,362,261.78 : 1,879,921.67 = 789,634.08 : x - Step 2: Convert to fraction form
1,362,261.78/1,879,921.67 = 789,634.08/x - Step 3: Cross multiply
1,362,261.78x = 1,879,921.67 × 789,634.08 - Step 4: Simplify right side
1,362,261.78x = 1,484,450,214,414.34 - Step 5: Solve for x
x = 1,484,450,214,414.34/1,362,261.78 - Step 6: Final answer
x = 1,089,695.27
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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.