Finding the Fourth Proportional to 1,392,872.22, 2,089,012.68 and 445,988.70
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Solution
The fourth proportional to 1,392,872.22, 2,089,012.68 and 445,988.70 is: 668,888.38
Step by Step Solution
- Step 1: Write the proportion equation
1,392,872.22 : 2,089,012.68 = 445,988.70 : x - Step 2: Convert to fraction form
1,392,872.22/2,089,012.68 = 445,988.70/x - Step 3: Cross multiply
1,392,872.22x = 2,089,012.68 × 445,988.70 - Step 4: Simplify right side
1,392,872.22x = 931,676,049,436.72 - Step 5: Solve for x
x = 931,676,049,436.72/1,392,872.22 - Step 6: Final answer
x = 668,888.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.