Finding the Fourth Proportional to 660,369.23, 990,149.02 and 281,073.98
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Solution
The fourth proportional to 660,369.23, 990,149.02 and 281,073.98 is: 421,438.66
Step by Step Solution
- Step 1: Write the proportion equation
660,369.23 : 990,149.02 = 281,073.98 : x - Step 2: Convert to fraction form
660,369.23/990,149.02 = 281,073.98/x - Step 3: Cross multiply
660,369.23x = 990,149.02 × 281,073.98 - Step 4: Simplify right side
660,369.23x = 278,305,121,245.10 - Step 5: Solve for x
x = 278,305,121,245.10/660,369.23 - Step 6: Final answer
x = 421,438.66
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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.