Finding the Fourth Proportional to 489,709.19, 675,798.69 and 274,849.26
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Solution
The fourth proportional to 489,709.19, 675,798.69 and 274,849.26 is: 379,291.98
Step by Step Solution
- Step 1: Write the proportion equation
489,709.19 : 675,798.69 = 274,849.26 : x - Step 2: Convert to fraction form
489,709.19/675,798.69 = 274,849.26/x - Step 3: Cross multiply
489,709.19x = 675,798.69 × 274,849.26 - Step 4: Simplify right side
489,709.19x = 185,742,766,476.48 - Step 5: Solve for x
x = 185,742,766,476.48/489,709.19 - Step 6: Final answer
x = 379,291.98
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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.