Finding the Fourth Proportional to 442,911.80, 664,367.70 and 324,813.80
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Solution
The fourth proportional to 442,911.80, 664,367.70 and 324,813.80 is: 487,220.70
Step by Step Solution
- Step 1: Write the proportion equation
442,911.80 : 664,367.70 = 324,813.80 : x - Step 2: Convert to fraction form
442,911.80/664,367.70 = 324,813.80/x - Step 3: Cross multiply
442,911.80x = 664,367.70 × 324,813.80 - Step 4: Simplify right side
442,911.80x = 215,795,797,234.26 - Step 5: Solve for x
x = 215,795,797,234.26/442,911.80 - Step 6: Final answer
x = 487,220.70
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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.