Finding the Fourth Proportional to 919,738.37, 1,268,153.34 and 629,489.99
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Solution
The fourth proportional to 919,738.37, 1,268,153.34 and 629,489.99 is: 867,953.17
Step by Step Solution
- Step 1: Write the proportion equation
919,738.37 : 1,268,153.34 = 629,489.99 : x - Step 2: Convert to fraction form
919,738.37/1,268,153.34 = 629,489.99/x - Step 3: Cross multiply
919,738.37x = 1,268,153.34 × 629,489.99 - Step 4: Simplify right side
919,738.37x = 798,289,833,315.07 - Step 5: Solve for x
x = 798,289,833,315.07/919,738.37 - Step 6: Final answer
x = 867,953.17
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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.