Finding the Fourth Proportional to 1,906,992.48, 2,631,670.79 and 1,122,231.84
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Solution
The fourth proportional to 1,906,992.48, 2,631,670.79 and 1,122,231.84 is: 1,548,692.40
Step by Step Solution
- Step 1: Write the proportion equation
1,906,992.48 : 2,631,670.79 = 1,122,231.84 : x - Step 2: Convert to fraction form
1,906,992.48/2,631,670.79 = 1,122,231.84/x - Step 3: Cross multiply
1,906,992.48x = 2,631,670.79 × 1,122,231.84 - Step 4: Simplify right side
1,906,992.48x = 2,953,344,750,136.72 - Step 5: Solve for x
x = 2,953,344,750,136.72/1,906,992.48 - Step 6: Final answer
x = 1,548,692.40
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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.