Finding the Fourth Proportional to 1,578.98, 2,369.69 and 605.36
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Solution
The fourth proportional to 1,578.98, 2,369.69 and 605.36 is: 908.50
Step by Step Solution
- Step 1: Write the proportion equation
1,578.98 : 2,369.69 = 605.36 : x - Step 2: Convert to fraction form
1,578.98/2,369.69 = 605.36/x - Step 3: Cross multiply
1,578.98x = 2,369.69 × 605.36 - Step 4: Simplify right side
1,578.98x = 1,434,500.66 - Step 5: Solve for x
x = 1,434,500.66/1,578.98 - Step 6: Final answer
x = 908.50
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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.