Finding the Fourth Proportional to 641,936.67, 885,861.75 and 355,450.59
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Solution
The fourth proportional to 641,936.67, 885,861.75 and 355,450.59 is: 490,515.80
Step by Step Solution
- Step 1: Write the proportion equation
641,936.67 : 885,861.75 = 355,450.59 : x - Step 2: Convert to fraction form
641,936.67/885,861.75 = 355,450.59/x - Step 3: Cross multiply
641,936.67x = 885,861.75 × 355,450.59 - Step 4: Simplify right side
641,936.67x = 314,880,081,695.93 - Step 5: Solve for x
x = 314,880,081,695.93/641,936.67 - Step 6: Final answer
x = 490,515.80
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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.