Finding the Fourth Proportional to 496,916.11, 685,692.70 and 279,149.23
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Solution
The fourth proportional to 496,916.11, 685,692.70 and 279,149.23 is: 385,196.99
Step by Step Solution
- Step 1: Write the proportion equation
496,916.11 : 685,692.70 = 279,149.23 : x - Step 2: Convert to fraction form
496,916.11/685,692.70 = 279,149.23/x - Step 3: Cross multiply
496,916.11x = 685,692.70 × 279,149.23 - Step 4: Simplify right side
496,916.11x = 191,410,589,221.62 - Step 5: Solve for x
x = 191,410,589,221.62/496,916.11 - Step 6: Final answer
x = 385,196.99
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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.