Finding the Fourth Proportional to 1,370,639.58, 1,891,680.54 and 789,751.44
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Solution
The fourth proportional to 1,370,639.58, 1,891,680.54 and 789,751.44 is: 1,089,971.03
Step by Step Solution
- Step 1: Write the proportion equation
1,370,639.58 : 1,891,680.54 = 789,751.44 : x - Step 2: Convert to fraction form
1,370,639.58/1,891,680.54 = 789,751.44/x - Step 3: Cross multiply
1,370,639.58x = 1,891,680.54 × 789,751.44 - Step 4: Simplify right side
1,370,639.58x = 1,493,957,430,484.98 - Step 5: Solve for x
x = 1,493,957,430,484.98/1,370,639.58 - Step 6: Final answer
x = 1,089,971.03
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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.