Finding the Fourth Proportional to 476.20, 657.28 and 426.99
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Solution
The fourth proportional to 476.20, 657.28 and 426.99 is: 589.36
Step by Step Solution
- Step 1: Write the proportion equation
476.20 : 657.28 = 426.99 : x - Step 2: Convert to fraction form
476.20/657.28 = 426.99/x - Step 3: Cross multiply
476.20x = 657.28 × 426.99 - Step 4: Simplify right side
476.20x = 280,651.99 - Step 5: Solve for x
x = 280,651.99/476.20 - Step 6: Final answer
x = 589.36
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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.