Finding the Fourth Proportional to 541,561.36, 747,362.55 and 311,991.97
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Solution
The fourth proportional to 541,561.36, 747,362.55 and 311,991.97 is: 430,553.45
Step by Step Solution
- Step 1: Write the proportion equation
541,561.36 : 747,362.55 = 311,991.97 : x - Step 2: Convert to fraction form
541,561.36/747,362.55 = 311,991.97/x - Step 3: Cross multiply
541,561.36x = 747,362.55 × 311,991.97 - Step 4: Simplify right side
541,561.36x = 233,171,114,278.72 - Step 5: Solve for x
x = 233,171,114,278.72/541,561.36 - Step 6: Final answer
x = 430,553.45
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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.