Finding the Fourth Proportional to 939,123.62, 1,408,797.74 and 331,786.20
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Solution
The fourth proportional to 939,123.62, 1,408,797.74 and 331,786.20 is: 497,718.98
Step by Step Solution
- Step 1: Write the proportion equation
939,123.62 : 1,408,797.74 = 331,786.20 : x - Step 2: Convert to fraction form
939,123.62/1,408,797.74 = 331,786.20/x - Step 3: Cross multiply
939,123.62x = 1,408,797.74 × 331,786.20 - Step 4: Simplify right side
939,123.62x = 467,419,649,940.25 - Step 5: Solve for x
x = 467,419,649,940.25/939,123.62 - Step 6: Final answer
x = 497,718.98
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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.