Finding the Fourth Proportional to 668.08, 1,002.36 and 453.68
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Solution
The fourth proportional to 668.08, 1,002.36 and 453.68 is: 680.68
Step by Step Solution
- Step 1: Write the proportion equation
668.08 : 1,002.36 = 453.68 : x - Step 2: Convert to fraction form
668.08/1,002.36 = 453.68/x - Step 3: Cross multiply
668.08x = 1,002.36 × 453.68 - Step 4: Simplify right side
668.08x = 454,750.68 - Step 5: Solve for x
x = 454,750.68/668.08 - Step 6: Final answer
x = 680.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.