Finding the Fourth Proportional to 641,723.08, 885,584.84 and 355,247.94
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Solution
The fourth proportional to 641,723.08, 885,584.84 and 355,247.94 is: 490,246.03
Step by Step Solution
- Step 1: Write the proportion equation
641,723.08 : 885,584.84 = 355,247.94 : x - Step 2: Convert to fraction form
641,723.08/885,584.84 = 355,247.94/x - Step 3: Cross multiply
641,723.08x = 885,584.84 × 355,247.94 - Step 4: Simplify right side
641,723.08x = 314,602,190,105.23 - Step 5: Solve for x
x = 314,602,190,105.23/641,723.08 - Step 6: Final answer
x = 490,246.03
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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.