Finding the Fourth Proportional to 1,990,043.68, 2,745,982.82 and 1,118,759.28
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Solution
The fourth proportional to 1,990,043.68, 2,745,982.82 and 1,118,759.28 is: 1,543,731.83
Step by Step Solution
- Step 1: Write the proportion equation
1,990,043.68 : 2,745,982.82 = 1,118,759.28 : x - Step 2: Convert to fraction form
1,990,043.68/2,745,982.82 = 1,118,759.28/x - Step 3: Cross multiply
1,990,043.68x = 2,745,982.82 × 1,118,759.28 - Step 4: Simplify right side
1,990,043.68x = 3,072,093,762,595.57 - Step 5: Solve for x
x = 3,072,093,762,595.57/1,990,043.68 - Step 6: Final answer
x = 1,543,731.83
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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.