Finding the Fourth Proportional to 789,703.26, 1,089,790.71 and 445,612.14
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Solution
The fourth proportional to 789,703.26, 1,089,790.71 and 445,612.14 is: 614,944.87
Step by Step Solution
- Step 1: Write the proportion equation
789,703.26 : 1,089,790.71 = 445,612.14 : x - Step 2: Convert to fraction form
789,703.26/1,089,790.71 = 445,612.14/x - Step 3: Cross multiply
789,703.26x = 1,089,790.71 × 445,612.14 - Step 4: Simplify right side
789,703.26x = 485,623,970,435.22 - Step 5: Solve for x
x = 485,623,970,435.22/789,703.26 - Step 6: Final answer
x = 614,944.87
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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.