Finding the Fourth Proportional to 2,320,245.15, 3,201,890.11 and 1,287,692.99
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Solution
The fourth proportional to 2,320,245.15, 3,201,890.11 and 1,287,692.99 is: 1,776,989.58
Step by Step Solution
- Step 1: Write the proportion equation
2,320,245.15 : 3,201,890.11 = 1,287,692.99 : x - Step 2: Convert to fraction form
2,320,245.15/3,201,890.11 = 1,287,692.99/x - Step 3: Cross multiply
2,320,245.15x = 3,201,890.11 × 1,287,692.99 - Step 4: Simplify right side
2,320,245.15x = 4,123,051,460,186.37 - Step 5: Solve for x
x = 4,123,051,460,186.37/2,320,245.15 - Step 6: Final answer
x = 1,776,989.58
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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.