Finding the Fourth Proportional to 478,480.57, 717,861.19 and 141,530.09
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Solution
The fourth proportional to 478,480.57, 717,861.19 and 141,530.09 is: 212,336.64
Step by Step Solution
- Step 1: Write the proportion equation
478,480.57 : 717,861.19 = 141,530.09 : x - Step 2: Convert to fraction form
478,480.57/717,861.19 = 141,530.09/x - Step 3: Cross multiply
478,480.57x = 717,861.19 × 141,530.09 - Step 4: Simplify right side
478,480.57x = 101,598,956,231.07 - Step 5: Solve for x
x = 101,598,956,231.07/478,480.57 - Step 6: Final answer
x = 212,336.64
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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.