Finding the Fourth Proportional to 641,396.23, 961,809.94 and 341,820.97
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Solution
The fourth proportional to 641,396.23, 961,809.94 and 341,820.97 is: 512,579.89
Step by Step Solution
- Step 1: Write the proportion equation
641,396.23 : 961,809.94 = 341,820.97 : x - Step 2: Convert to fraction form
641,396.23/961,809.94 = 341,820.97/x - Step 3: Cross multiply
641,396.23x = 961,809.94 × 341,820.97 - Step 4: Simplify right side
641,396.23x = 328,766,806,646.44 - Step 5: Solve for x
x = 328,766,806,646.44/641,396.23 - Step 6: Final answer
x = 512,579.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.