Finding the Fourth Proportional to 2,160,428.68, 2,981,333.94 and 1,193,403.08
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Solution
The fourth proportional to 2,160,428.68, 2,981,333.94 and 1,193,403.08 is: 1,646,864.41
Step by Step Solution
- Step 1: Write the proportion equation
2,160,428.68 : 2,981,333.94 = 1,193,403.08 : x - Step 2: Convert to fraction form
2,160,428.68/2,981,333.94 = 1,193,403.08/x - Step 3: Cross multiply
2,160,428.68x = 2,981,333.94 × 1,193,403.08 - Step 4: Simplify right side
2,160,428.68x = 3,557,933,106,504.54 - Step 5: Solve for x
x = 3,557,933,106,504.54/2,160,428.68 - Step 6: Final answer
x = 1,646,864.41
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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.