Finding the Fourth Proportional to 490,208.22, 676,487.70 and 275,348.40
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Solution
The fourth proportional to 490,208.22, 676,487.70 and 275,348.40 is: 379,980.99
Step by Step Solution
- Step 1: Write the proportion equation
490,208.22 : 676,487.70 = 275,348.40 : x - Step 2: Convert to fraction form
490,208.22/676,487.70 = 275,348.40/x - Step 3: Cross multiply
490,208.22x = 676,487.70 × 275,348.40 - Step 4: Simplify right side
490,208.22x = 186,269,805,814.68 - Step 5: Solve for x
x = 186,269,805,814.68/490,208.22 - Step 6: Final answer
x = 379,980.99
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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.