Finding the Fourth Proportional to 454.56, 682.72 and 434.08
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Solution
The fourth proportional to 454.56, 682.72 and 434.08 is: 651.96
Step by Step Solution
- Step 1: Write the proportion equation
454.56 : 682.72 = 434.08 : x - Step 2: Convert to fraction form
454.56/682.72 = 434.08/x - Step 3: Cross multiply
454.56x = 682.72 × 434.08 - Step 4: Simplify right side
454.56x = 296,355.10 - Step 5: Solve for x
x = 296,355.10/454.56 - Step 6: Final answer
x = 651.96
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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.