Finding the Fourth Proportional to 489,085.80, 733,628.70 and 317,843.70
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Solution
The fourth proportional to 489,085.80, 733,628.70 and 317,843.70 is: 476,765.55
Step by Step Solution
- Step 1: Write the proportion equation
489,085.80 : 733,628.70 = 317,843.70 : x - Step 2: Convert to fraction form
489,085.80/733,628.70 = 317,843.70/x - Step 3: Cross multiply
489,085.80x = 733,628.70 × 317,843.70 - Step 4: Simplify right side
489,085.80x = 233,179,260,434.19 - Step 5: Solve for x
x = 233,179,260,434.19/489,085.80 - Step 6: Final answer
x = 476,765.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.