Finding the Fourth Proportional to 711,936.36, 982,277.60 and 405,901.17
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Solution
The fourth proportional to 711,936.36, 982,277.60 and 405,901.17 is: 560,032.68
Step by Step Solution
- Step 1: Write the proportion equation
711,936.36 : 982,277.60 = 405,901.17 : x - Step 2: Convert to fraction form
711,936.36/982,277.60 = 405,901.17/x - Step 3: Cross multiply
711,936.36x = 982,277.60 × 405,901.17 - Step 4: Simplify right side
711,936.36x = 398,707,625,075.29 - Step 5: Solve for x
x = 398,707,625,075.29/711,936.36 - Step 6: Final answer
x = 560,032.68
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1.5x scale
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.