Finding the Fourth Proportional to 1,131,576.08, 1,561,531.56 and 622,248.08
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Solution
The fourth proportional to 1,131,576.08, 1,561,531.56 and 622,248.08 is: 858,678.47
Step by Step Solution
- Step 1: Write the proportion equation
1,131,576.08 : 1,561,531.56 = 622,248.08 : x - Step 2: Convert to fraction form
1,131,576.08/1,561,531.56 = 622,248.08/x - Step 3: Cross multiply
1,131,576.08x = 1,561,531.56 × 622,248.08 - Step 4: Simplify right side
1,131,576.08x = 971,660,015,069.41 - Step 5: Solve for x
x = 971,660,015,069.41/1,131,576.08 - Step 6: Final answer
x = 858,678.47
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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.