Finding the Fourth Proportional to 476,571.63, 657,816.47 and 306,805.75
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Solution
The fourth proportional to 476,571.63, 657,816.47 and 306,805.75 is: 423,486.97
Step by Step Solution
- Step 1: Write the proportion equation
476,571.63 : 657,816.47 = 306,805.75 : x - Step 2: Convert to fraction form
476,571.63/657,816.47 = 306,805.75/x - Step 3: Cross multiply
476,571.63x = 657,816.47 × 306,805.75 - Step 4: Simplify right side
476,571.63x = 201,821,875,440.70 - Step 5: Solve for x
x = 201,821,875,440.70/476,571.63 - Step 6: Final answer
x = 423,486.97
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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.