Finding the Fourth Proportional to 644,230.26, 889,874.37 and 490,333.50
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Solution
The fourth proportional to 644,230.26, 889,874.37 and 490,333.50 is: 677,296.99
Step by Step Solution
- Step 1: Write the proportion equation
644,230.26 : 889,874.37 = 490,333.50 : x - Step 2: Convert to fraction form
644,230.26/889,874.37 = 490,333.50/x - Step 3: Cross multiply
644,230.26x = 889,874.37 × 490,333.50 - Step 4: Simplify right side
644,230.26x = 436,335,214,402.40 - Step 5: Solve for x
x = 436,335,214,402.40/644,230.26 - Step 6: Final answer
x = 677,296.99
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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.