Finding the Fourth Proportional to 1,511,712.81, 2,086,163.31 and 832,649.31
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Solution
The fourth proportional to 1,511,712.81, 2,086,163.31 and 832,649.31 is: 1,149,055.85
Step by Step Solution
- Step 1: Write the proportion equation
1,511,712.81 : 2,086,163.31 = 832,649.31 : x - Step 2: Convert to fraction form
1,511,712.81/2,086,163.31 = 832,649.31/x - Step 3: Cross multiply
1,511,712.81x = 2,086,163.31 × 832,649.31 - Step 4: Simplify right side
1,511,712.81x = 1,737,042,440,618.82 - Step 5: Solve for x
x = 1,737,042,440,618.82/1,511,712.81 - Step 6: Final answer
x = 1,149,055.85
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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.