Finding the Fourth Proportional to 489,218.63, 675,195.53 and 298,342.73
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Solution
The fourth proportional to 489,218.63, 675,195.53 and 298,342.73 is: 411,757.99
Step by Step Solution
- Step 1: Write the proportion equation
489,218.63 : 675,195.53 = 298,342.73 : x - Step 2: Convert to fraction form
489,218.63/675,195.53 = 298,342.73/x - Step 3: Cross multiply
489,218.63x = 675,195.53 × 298,342.73 - Step 4: Simplify right side
489,218.63x = 201,439,677,900.27 - Step 5: Solve for x
x = 201,439,677,900.27/489,218.63 - Step 6: Final answer
x = 411,757.99
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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.