Finding the Fourth Proportional to 426.81, 588.58 and 394.99
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Solution
The fourth proportional to 426.81, 588.58 and 394.99 is: 544.70
Step by Step Solution
- Step 1: Write the proportion equation
426.81 : 588.58 = 394.99 : x - Step 2: Convert to fraction form
426.81/588.58 = 394.99/x - Step 3: Cross multiply
426.81x = 588.58 × 394.99 - Step 4: Simplify right side
426.81x = 232,483.21 - Step 5: Solve for x
x = 232,483.21/426.81 - Step 6: Final answer
x = 544.70
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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.