Finding the Fourth Proportional to 4,876,013.28, 6,728,917.68 and 2,840,221.92
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Solution
The fourth proportional to 4,876,013.28, 6,728,917.68 and 2,840,221.92 is: 3,919,517.52
Step by Step Solution
- Step 1: Write the proportion equation
4,876,013.28 : 6,728,917.68 = 2,840,221.92 : x - Step 2: Convert to fraction form
4,876,013.28/6,728,917.68 = 2,840,221.92/x - Step 3: Cross multiply
4,876,013.28x = 6,728,917.68 × 2,840,221.92 - Step 4: Simplify right side
4,876,013.28x = 19,111,619,492,611.54 - Step 5: Solve for x
x = 19,111,619,492,611.54/4,876,013.28 - Step 6: Final answer
x = 3,919,517.52
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1.5x scale
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.