Finding the Fourth Proportional to 1,394,161.40, 2,088,477.30 and 831,524.60
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Solution
The fourth proportional to 1,394,161.40, 2,088,477.30 and 831,524.60 is: 1,245,637.88
Step by Step Solution
- Step 1: Write the proportion equation
1,394,161.40 : 2,088,477.30 = 831,524.60 : x - Step 2: Convert to fraction form
1,394,161.40/2,088,477.30 = 831,524.60/x - Step 3: Cross multiply
1,394,161.40x = 2,088,477.30 × 831,524.60 - Step 4: Simplify right side
1,394,161.40x = 1,736,620,251,491.58 - Step 5: Solve for x
x = 1,736,620,251,491.58/1,394,161.40 - Step 6: Final answer
x = 1,245,637.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.