Finding the Fourth Proportional to 494,296.80, 740,408.40 and 272,421.60
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Solution
The fourth proportional to 494,296.80, 740,408.40 and 272,421.60 is: 408,060.99
Step by Step Solution
- Step 1: Write the proportion equation
494,296.80 : 740,408.40 = 272,421.60 : x - Step 2: Convert to fraction form
494,296.80/740,408.40 = 272,421.60/x - Step 3: Cross multiply
494,296.80x = 740,408.40 × 272,421.60 - Step 4: Simplify right side
494,296.80x = 201,703,240,981.44 - Step 5: Solve for x
x = 201,703,240,981.44/494,296.80 - Step 6: Final answer
x = 408,060.99
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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.