Finding the Fourth Proportional to 753,560.72, 1,039,912.11 and 431,277.11
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Solution
The fourth proportional to 753,560.72, 1,039,912.11 and 431,277.11 is: 595,161.45
Step by Step Solution
- Step 1: Write the proportion equation
753,560.72 : 1,039,912.11 = 431,277.11 : x - Step 2: Convert to fraction form
753,560.72/1,039,912.11 = 431,277.11/x - Step 3: Cross multiply
753,560.72x = 1,039,912.11 × 431,277.11 - Step 4: Simplify right side
753,560.72x = 448,490,284,255.24 - Step 5: Solve for x
x = 448,490,284,255.24/753,560.72 - Step 6: Final answer
x = 595,161.45
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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.