Finding the Fourth Proportional to 484,114.71, 667,619.75 and 309,740.09
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Solution
The fourth proportional to 484,114.71, 667,619.75 and 309,740.09 is: 427,147.94
Step by Step Solution
- Step 1: Write the proportion equation
484,114.71 : 667,619.75 = 309,740.09 : x - Step 2: Convert to fraction form
484,114.71/667,619.75 = 309,740.09/x - Step 3: Cross multiply
484,114.71x = 667,619.75 × 309,740.09 - Step 4: Simplify right side
484,114.71x = 206,788,601,452.76 - Step 5: Solve for x
x = 206,788,601,452.76/484,114.71 - Step 6: Final answer
x = 427,147.94
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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.