Finding the Fourth Proportional to 821,277.36, 1,133,371.44 and 481,751.28
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Solution
The fourth proportional to 821,277.36, 1,133,371.44 and 481,751.28 is: 664,821.86
Step by Step Solution
- Step 1: Write the proportion equation
821,277.36 : 1,133,371.44 = 481,751.28 : x - Step 2: Convert to fraction form
821,277.36/1,133,371.44 = 481,751.28/x - Step 3: Cross multiply
821,277.36x = 1,133,371.44 × 481,751.28 - Step 4: Simplify right side
821,277.36x = 546,003,141,935.44 - Step 5: Solve for x
x = 546,003,141,935.44/821,277.36 - Step 6: Final answer
x = 664,821.86
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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.