Finding the Fourth Proportional to 813,692.40, 1,122,922.08 and 451,149.99
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Solution
The fourth proportional to 813,692.40, 1,122,922.08 and 451,149.99 is: 622,601.72
Step by Step Solution
- Step 1: Write the proportion equation
813,692.40 : 1,122,922.08 = 451,149.99 : x - Step 2: Convert to fraction form
813,692.40/1,122,922.08 = 451,149.99/x - Step 3: Cross multiply
813,692.40x = 1,122,922.08 × 451,149.99 - Step 4: Simplify right side
813,692.40x = 506,606,285,162.78 - Step 5: Solve for x
x = 506,606,285,162.78/813,692.40 - Step 6: Final answer
x = 622,601.72
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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.