Finding the Fourth Proportional to 3,921,745.68, 5,411,169.54 and 2,289,412.26
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Solution
The fourth proportional to 3,921,745.68, 5,411,169.54 and 2,289,412.26 is: 3,158,898.84
Step by Step Solution
- Step 1: Write the proportion equation
3,921,745.68 : 5,411,169.54 = 2,289,412.26 : x - Step 2: Convert to fraction form
3,921,745.68/5,411,169.54 = 2,289,412.26/x - Step 3: Cross multiply
3,921,745.68x = 5,411,169.54 × 2,289,412.26 - Step 4: Simplify right side
3,921,745.68x = 12,388,397,885,814.56 - Step 5: Solve for x
x = 12,388,397,885,814.56/3,921,745.68 - Step 6: Final answer
x = 3,158,898.84
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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.