Finding the Fourth Proportional to 1,370,638.58, 1,891,679.16 and 789,750.44
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Solution
The fourth proportional to 1,370,638.58, 1,891,679.16 and 789,750.44 is: 1,089,969.65
Step by Step Solution
- Step 1: Write the proportion equation
1,370,638.58 : 1,891,679.16 = 789,750.44 : x - Step 2: Convert to fraction form
1,370,638.58/1,891,679.16 = 789,750.44/x - Step 3: Cross multiply
1,370,638.58x = 1,891,679.16 × 789,750.44 - Step 4: Simplify right side
1,370,638.58x = 1,493,954,448,948.83 - Step 5: Solve for x
x = 1,493,954,448,948.83/1,370,638.58 - Step 6: Final answer
x = 1,089,969.65
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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.