Finding the Fourth Proportional to 3,609,072.50, 5,413,608.80 and 1,212,917.21
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Solution
The fourth proportional to 3,609,072.50, 5,413,608.80 and 1,212,917.21 is: 1,819,375.83
Step by Step Solution
- Step 1: Write the proportion equation
3,609,072.50 : 5,413,608.80 = 1,212,917.21 : x - Step 2: Convert to fraction form
3,609,072.50/5,413,608.80 = 1,212,917.21/x - Step 3: Cross multiply
3,609,072.50x = 5,413,608.80 × 1,212,917.21 - Step 4: Simplify right side
3,609,072.50x = 6,566,259,248,594.82 - Step 5: Solve for x
x = 6,566,259,248,594.82/3,609,072.50 - Step 6: Final answer
x = 1,819,375.83
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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.