Finding the Fourth Proportional to 578.99, 798.99 and 343.10
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Solution
The fourth proportional to 578.99, 798.99 and 343.10 is: 473.47
Step by Step Solution
- Step 1: Write the proportion equation
578.99 : 798.99 = 343.10 : x - Step 2: Convert to fraction form
578.99/798.99 = 343.10/x - Step 3: Cross multiply
578.99x = 798.99 × 343.10 - Step 4: Simplify right side
578.99x = 274,133.47 - Step 5: Solve for x
x = 274,133.47/578.99 - Step 6: Final answer
x = 473.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.