Finding the Fourth Proportional to 719,517.97, 1,079,088.90 and 213,942.79
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Solution
The fourth proportional to 719,517.97, 1,079,088.90 and 213,942.79 is: 320,858.27
Step by Step Solution
- Step 1: Write the proportion equation
719,517.97 : 1,079,088.90 = 213,942.79 : x - Step 2: Convert to fraction form
719,517.97/1,079,088.90 = 213,942.79/x - Step 3: Cross multiply
719,517.97x = 1,079,088.90 × 213,942.79 - Step 4: Simplify right side
719,517.97x = 230,863,289,924.03 - Step 5: Solve for x
x = 230,863,289,924.03/719,517.97 - Step 6: Final answer
x = 320,858.27
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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.