Finding the Fourth Proportional to 1,990,440, 2,745,861.12 and 1,346,086.08
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Solution
The fourth proportional to 1,990,440, 2,745,861.12 and 1,346,086.08 is: 1,856,958.98
Step by Step Solution
- Step 1: Write the proportion equation
1,990,440 : 2,745,861.12 = 1,346,086.08 : x - Step 2: Convert to fraction form
1,990,440/2,745,861.12 = 1,346,086.08/x - Step 3: Cross multiply
1,990,440x = 2,745,861.12 × 1,346,086.08 - Step 4: Simplify right side
1,990,440x = 3,696,165,431,245.21 - Step 5: Solve for x
x = 3,696,165,431,245.21/1,990,440 - Step 6: Final answer
x = 1,856,958.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.