Finding the Fourth Proportional to 979,006.75, 1,351,114.82 and 571,239.97
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Solution
The fourth proportional to 979,006.75, 1,351,114.82 and 571,239.97 is: 788,361.05
Step by Step Solution
- Step 1: Write the proportion equation
979,006.75 : 1,351,114.82 = 571,239.97 : x - Step 2: Convert to fraction form
979,006.75/1,351,114.82 = 571,239.97/x - Step 3: Cross multiply
979,006.75x = 1,351,114.82 × 571,239.97 - Step 4: Simplify right side
979,006.75x = 771,810,789,243.36 - Step 5: Solve for x
x = 771,810,789,243.36/979,006.75 - Step 6: Final answer
x = 788,361.05
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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.