Finding the Fourth Proportional to 641,793.24, 885,640.96 and 351,349.20
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Solution
The fourth proportional to 641,793.24, 885,640.96 and 351,349.20 is: 484,843.44
Step by Step Solution
- Step 1: Write the proportion equation
641,793.24 : 885,640.96 = 351,349.20 : x - Step 2: Convert to fraction form
641,793.24/885,640.96 = 351,349.20/x - Step 3: Cross multiply
641,793.24x = 885,640.96 × 351,349.20 - Step 4: Simplify right side
641,793.24x = 311,169,242,783.23 - Step 5: Solve for x
x = 311,169,242,783.23/641,793.24 - Step 6: Final answer
x = 484,843.44
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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.