Finding the Fourth Proportional to 631,236.89, 871,105.52 and 344,756.99
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Solution
The fourth proportional to 631,236.89, 871,105.52 and 344,756.99 is: 475,763.89
Step by Step Solution
- Step 1: Write the proportion equation
631,236.89 : 871,105.52 = 344,756.99 : x - Step 2: Convert to fraction form
631,236.89/871,105.52 = 344,756.99/x - Step 3: Cross multiply
631,236.89x = 871,105.52 × 344,756.99 - Step 4: Simplify right side
631,236.89x = 300,319,720,087.24 - Step 5: Solve for x
x = 300,319,720,087.24/631,236.89 - Step 6: Final answer
x = 475,763.89
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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.