Finding the Fourth Proportional to 478,625.98, 717,968.18 and 154,446.97
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Solution
The fourth proportional to 478,625.98, 717,968.18 and 154,446.97 is: 231,679.88
Step by Step Solution
- Step 1: Write the proportion equation
478,625.98 : 717,968.18 = 154,446.97 : x - Step 2: Convert to fraction form
478,625.98/717,968.18 = 154,446.97/x - Step 3: Cross multiply
478,625.98x = 717,968.18 × 154,446.97 - Step 4: Simplify right side
478,625.98x = 110,888,006,431.49 - Step 5: Solve for x
x = 110,888,006,431.49/478,625.98 - Step 6: Final answer
x = 231,679.88
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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.