Finding the Fourth Proportional to 427,458.44, 641,921.94 and 379,534.97
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Solution
The fourth proportional to 427,458.44, 641,921.94 and 379,534.97 is: 569,954.41
Step by Step Solution
- Step 1: Write the proportion equation
427,458.44 : 641,921.94 = 379,534.97 : x - Step 2: Convert to fraction form
427,458.44/641,921.94 = 379,534.97/x - Step 3: Cross multiply
427,458.44x = 641,921.94 × 379,534.97 - Step 4: Simplify right side
427,458.44x = 243,631,824,240.24 - Step 5: Solve for x
x = 243,631,824,240.24/427,458.44 - Step 6: Final answer
x = 569,954.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.