Finding the Fourth Proportional to 1,511,721.59, 2,086,175.40 and 832,658.09
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Solution
The fourth proportional to 1,511,721.59, 2,086,175.40 and 832,658.09 is: 1,149,067.95
Step by Step Solution
- Step 1: Write the proportion equation
1,511,721.59 : 2,086,175.40 = 832,658.09 : x - Step 2: Convert to fraction form
1,511,721.59/2,086,175.40 = 832,658.09/x - Step 3: Cross multiply
1,511,721.59x = 2,086,175.40 × 832,658.09 - Step 4: Simplify right side
1,511,721.59x = 1,737,070,823,968.99 - Step 5: Solve for x
x = 1,737,070,823,968.99/1,511,721.59 - Step 6: Final answer
x = 1,149,067.95
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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.