Finding the Fourth Proportional to 378,679.62, 522,563.49 and 235,406.82
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Solution
The fourth proportional to 378,679.62, 522,563.49 and 235,406.82 is: 324,852.47
Step by Step Solution
- Step 1: Write the proportion equation
378,679.62 : 522,563.49 = 235,406.82 : x - Step 2: Convert to fraction form
378,679.62/522,563.49 = 235,406.82/x - Step 3: Cross multiply
378,679.62x = 522,563.49 × 235,406.82 - Step 4: Simplify right side
378,679.62x = 123,015,009,429.00 - Step 5: Solve for x
x = 123,015,009,429.00/378,679.62 - Step 6: Final answer
x = 324,852.47
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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.