Finding the Fourth Proportional to 453.93, 622.40 and 442.99
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Solution
The fourth proportional to 453.93, 622.40 and 442.99 is: 607.40
Step by Step Solution
- Step 1: Write the proportion equation
453.93 : 622.40 = 442.99 : x - Step 2: Convert to fraction form
453.93/622.40 = 442.99/x - Step 3: Cross multiply
453.93x = 622.40 × 442.99 - Step 4: Simplify right side
453.93x = 275,716.98 - Step 5: Solve for x
x = 275,716.98/453.93 - Step 6: Final answer
x = 607.40
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.