Finding the Fourth Proportional to 3,207,511.38, 4,810,685.82 and 1,288,345.05
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Solution
The fourth proportional to 3,207,511.38, 4,810,685.82 and 1,288,345.05 is: 1,932,284.11
Step by Step Solution
- Step 1: Write the proportion equation
3,207,511.38 : 4,810,685.82 = 1,288,345.05 : x - Step 2: Convert to fraction form
3,207,511.38/4,810,685.82 = 1,288,345.05/x - Step 3: Cross multiply
3,207,511.38x = 4,810,685.82 × 1,288,345.05 - Step 4: Simplify right side
3,207,511.38x = 6,197,823,263,302.19 - Step 5: Solve for x
x = 6,197,823,263,302.19/3,207,511.38 - Step 6: Final answer
x = 1,932,284.11
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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.