Finding the Fourth Proportional to 434.87, 656.18 and 417.99
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Solution
The fourth proportional to 434.87, 656.18 and 417.99 is: 630.71
Step by Step Solution
- Step 1: Write the proportion equation
434.87 : 656.18 = 417.99 : x - Step 2: Convert to fraction form
434.87/656.18 = 417.99/x - Step 3: Cross multiply
434.87x = 656.18 × 417.99 - Step 4: Simplify right side
434.87x = 274,274.59 - Step 5: Solve for x
x = 274,274.59/434.87 - Step 6: Final answer
x = 630.71
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.