Finding the Fourth Proportional to 1,310,732.73, 1,808,378.60 and 1,068,599.03
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Solution
The fourth proportional to 1,310,732.73, 1,808,378.60 and 1,068,599.03 is: 1,474,313.99
Step by Step Solution
- Step 1: Write the proportion equation
1,310,732.73 : 1,808,378.60 = 1,068,599.03 : x - Step 2: Convert to fraction form
1,310,732.73/1,808,378.60 = 1,068,599.03/x - Step 3: Cross multiply
1,310,732.73x = 1,808,378.60 × 1,068,599.03 - Step 4: Simplify right side
1,310,732.73x = 1,932,431,603,447.87 - Step 5: Solve for x
x = 1,932,431,603,447.87/1,310,732.73 - Step 6: Final answer
x = 1,474,313.99
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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.