Finding the Fourth Proportional to 642,593.04, 962,837.91 and 389,105.70
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Solution
The fourth proportional to 642,593.04, 962,837.91 and 389,105.70 is: 583,021.75
Step by Step Solution
- Step 1: Write the proportion equation
642,593.04 : 962,837.91 = 389,105.70 : x - Step 2: Convert to fraction form
642,593.04/962,837.91 = 389,105.70/x - Step 3: Cross multiply
642,593.04x = 962,837.91 × 389,105.70 - Step 4: Simplify right side
642,593.04x = 374,645,718,957.09 - Step 5: Solve for x
x = 374,645,718,957.09/642,593.04 - Step 6: Final answer
x = 583,021.75
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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.