Finding the Fourth Proportional to 481,515.96, 664,313.58 and 311,843.64
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Solution
The fourth proportional to 481,515.96, 664,313.58 and 311,843.64 is: 430,228.66
Step by Step Solution
- Step 1: Write the proportion equation
481,515.96 : 664,313.58 = 311,843.64 : x - Step 2: Convert to fraction form
481,515.96/664,313.58 = 311,843.64/x - Step 3: Cross multiply
481,515.96x = 664,313.58 × 311,843.64 - Step 4: Simplify right side
481,515.96x = 207,161,964,888.63 - Step 5: Solve for x
x = 207,161,964,888.63/481,515.96 - Step 6: Final answer
x = 430,228.66
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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.