Finding the Fourth Proportional to 1,131,821.99, 1,561,943.90 and 622,537.73
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Solution
The fourth proportional to 1,131,821.99, 1,561,943.90 and 622,537.73 is: 859,118.32
Step by Step Solution
- Step 1: Write the proportion equation
1,131,821.99 : 1,561,943.90 = 622,537.73 : x - Step 2: Convert to fraction form
1,131,821.99/1,561,943.90 = 622,537.73/x - Step 3: Cross multiply
1,131,821.99x = 1,561,943.90 × 622,537.73 - Step 4: Simplify right side
1,131,821.99x = 972,369,006,780.66 - Step 5: Solve for x
x = 972,369,006,780.66/1,131,821.99 - Step 6: Final answer
x = 859,118.32
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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.