Finding the Fourth Proportional to 489,081.80, 733,622.70 and 317,839.70
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Solution
The fourth proportional to 489,081.80, 733,622.70 and 317,839.70 is: 476,759.55
Step by Step Solution
- Step 1: Write the proportion equation
489,081.80 : 733,622.70 = 317,839.70 : x - Step 2: Convert to fraction form
489,081.80/733,622.70 = 317,839.70/x - Step 3: Cross multiply
489,081.80x = 733,622.70 × 317,839.70 - Step 4: Simplify right side
489,081.80x = 233,174,418,881.19 - Step 5: Solve for x
x = 233,174,418,881.19/489,081.80 - Step 6: Final answer
x = 476,759.55
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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.