Finding the Fourth Proportional to 1,260,939.15, 1,891,268.53 and 451,290.80
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Solution
The fourth proportional to 1,260,939.15, 1,891,268.53 and 451,290.80 is: 676,886.03
Step by Step Solution
- Step 1: Write the proportion equation
1,260,939.15 : 1,891,268.53 = 451,290.80 : x - Step 2: Convert to fraction form
1,260,939.15/1,891,268.53 = 451,290.80/x - Step 3: Cross multiply
1,260,939.15x = 1,891,268.53 × 451,290.80 - Step 4: Simplify right side
1,260,939.15x = 853,512,091,518.47 - Step 5: Solve for x
x = 853,512,091,518.47/1,260,939.15 - Step 6: Final answer
x = 676,886.03
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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.