Finding the Fourth Proportional to 1,129,682, 1,558,571.36 and 722,022.48
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Solution
The fourth proportional to 1,129,682, 1,558,571.36 and 722,022.48 is: 996,141.89
Step by Step Solution
- Step 1: Write the proportion equation
1,129,682 : 1,558,571.36 = 722,022.48 : x - Step 2: Convert to fraction form
1,129,682/1,558,571.36 = 722,022.48/x - Step 3: Cross multiply
1,129,682x = 1,558,571.36 × 722,022.48 - Step 4: Simplify right side
1,129,682x = 1,125,323,558,604.17 - Step 5: Solve for x
x = 1,125,323,558,604.17/1,129,682 - Step 6: Final answer
x = 996,141.89
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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.