Finding the Fourth Proportional to 505,446.57, 697,436.97 and 290,546.48
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Solution
The fourth proportional to 505,446.57, 697,436.97 and 290,546.48 is: 400,908.55
Step by Step Solution
- Step 1: Write the proportion equation
505,446.57 : 697,436.97 = 290,546.48 : x - Step 2: Convert to fraction form
505,446.57/697,436.97 = 290,546.48/x - Step 3: Cross multiply
505,446.57x = 697,436.97 × 290,546.48 - Step 4: Simplify right side
505,446.57x = 202,637,853,168.18 - Step 5: Solve for x
x = 202,637,853,168.18/505,446.57 - Step 6: Final answer
x = 400,908.55
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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.