Finding the Fourth Proportional to 478,786.11, 717,958.37 and 141,706.23
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Solution
The fourth proportional to 478,786.11, 717,958.37 and 141,706.23 is: 212,493.99
Step by Step Solution
- Step 1: Write the proportion equation
478,786.11 : 717,958.37 = 141,706.23 : x - Step 2: Convert to fraction form
478,786.11/717,958.37 = 141,706.23/x - Step 3: Cross multiply
478,786.11x = 717,958.37 × 141,706.23 - Step 4: Simplify right side
478,786.11x = 101,739,173,201.11 - Step 5: Solve for x
x = 101,739,173,201.11/478,786.11 - Step 6: Final answer
x = 212,493.99
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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.