Finding the Fourth Proportional to 919,035.36, 1,268,261.73 and 505,563.26
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Solution
The fourth proportional to 919,035.36, 1,268,261.73 and 505,563.26 is: 697,673.40
Step by Step Solution
- Step 1: Write the proportion equation
919,035.36 : 1,268,261.73 = 505,563.26 : x - Step 2: Convert to fraction form
919,035.36/1,268,261.73 = 505,563.26/x - Step 3: Cross multiply
919,035.36x = 1,268,261.73 × 505,563.26 - Step 4: Simplify right side
919,035.36x = 641,186,528,410.73 - Step 5: Solve for x
x = 641,186,528,410.73/919,035.36 - Step 6: Final answer
x = 697,673.40
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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.