Finding the Fourth Proportional to 489,117.40, 733,676.10 and 445,571.80
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Solution
The fourth proportional to 489,117.40, 733,676.10 and 445,571.80 is: 668,357.70
Step by Step Solution
- Step 1: Write the proportion equation
489,117.40 : 733,676.10 = 445,571.80 : x - Step 2: Convert to fraction form
489,117.40/733,676.10 = 445,571.80/x - Step 3: Cross multiply
489,117.40x = 733,676.10 × 445,571.80 - Step 4: Simplify right side
489,117.40x = 326,905,380,493.98 - Step 5: Solve for x
x = 326,905,380,493.98/489,117.40 - Step 6: Final answer
x = 668,357.70
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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.