Finding the Fourth Proportional to 2,019,874.08, 2,788,436.32 and 1,256,173.68
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Solution
The fourth proportional to 2,019,874.08, 2,788,436.32 and 1,256,173.68 is: 1,734,147.86
Step by Step Solution
- Step 1: Write the proportion equation
2,019,874.08 : 2,788,436.32 = 1,256,173.68 : x - Step 2: Convert to fraction form
2,019,874.08/2,788,436.32 = 1,256,173.68/x - Step 3: Cross multiply
2,019,874.08x = 2,788,436.32 × 1,256,173.68 - Step 4: Simplify right side
2,019,874.08x = 3,502,760,313,540.06 - Step 5: Solve for x
x = 3,502,760,313,540.06/2,019,874.08 - Step 6: Final answer
x = 1,734,147.86
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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.