Finding the Fourth Proportional to 738,983.37, 1,019,796.60 and 399,451.62
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Solution
The fourth proportional to 738,983.37, 1,019,796.60 and 399,451.62 is: 551,242.99
Step by Step Solution
- Step 1: Write the proportion equation
738,983.37 : 1,019,796.60 = 399,451.62 : x - Step 2: Convert to fraction form
738,983.37/1,019,796.60 = 399,451.62/x - Step 3: Cross multiply
738,983.37x = 1,019,796.60 × 399,451.62 - Step 4: Simplify right side
738,983.37x = 407,359,403,940.49 - Step 5: Solve for x
x = 407,359,403,940.49/738,983.37 - Step 6: Final answer
x = 551,242.99
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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.