Finding the Fourth Proportional to 903,906.97, 1,247,388.18 and 496,015.63
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Solution
The fourth proportional to 903,906.97, 1,247,388.18 and 496,015.63 is: 684,499.68
Step by Step Solution
- Step 1: Write the proportion equation
903,906.97 : 1,247,388.18 = 496,015.63 : x - Step 2: Convert to fraction form
903,906.97/1,247,388.18 = 496,015.63/x - Step 3: Cross multiply
903,906.97x = 1,247,388.18 × 496,015.63 - Step 4: Simplify right side
903,906.97x = 618,724,033,957.25 - Step 5: Solve for x
x = 618,724,033,957.25/903,906.97 - Step 6: Final answer
x = 684,499.68
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1.5x scale
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.