Finding the Fourth Proportional to 454.80, 628.08 and 324.08
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Solution
The fourth proportional to 454.80, 628.08 and 324.08 is: 447.56
Step by Step Solution
- Step 1: Write the proportion equation
454.80 : 628.08 = 324.08 : x - Step 2: Convert to fraction form
454.80/628.08 = 324.08/x - Step 3: Cross multiply
454.80x = 628.08 × 324.08 - Step 4: Simplify right side
454.80x = 203,548.17 - Step 5: Solve for x
x = 203,548.17/454.80 - Step 6: Final answer
x = 447.56
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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.