Finding the Fourth Proportional to 719,472.54, 992,874.26 and 392,786.09
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Solution
The fourth proportional to 719,472.54, 992,874.26 and 392,786.09 is: 542,045.98
Step by Step Solution
- Step 1: Write the proportion equation
719,472.54 : 992,874.26 = 392,786.09 : x - Step 2: Convert to fraction form
719,472.54/992,874.26 = 392,786.09/x - Step 3: Cross multiply
719,472.54x = 992,874.26 × 392,786.09 - Step 4: Simplify right side
719,472.54x = 389,987,198,447.04 - Step 5: Solve for x
x = 389,987,198,447.04/719,472.54 - Step 6: Final answer
x = 542,045.98
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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.