Finding the Fourth Proportional to 426.63, 635.58 and 405.99
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Solution
The fourth proportional to 426.63, 635.58 and 405.99 is: 604.83
Step by Step Solution
- Step 1: Write the proportion equation
426.63 : 635.58 = 405.99 : x - Step 2: Convert to fraction form
426.63/635.58 = 405.99/x - Step 3: Cross multiply
426.63x = 635.58 × 405.99 - Step 4: Simplify right side
426.63x = 258,039.12 - Step 5: Solve for x
x = 258,039.12/426.63 - Step 6: Final answer
x = 604.83
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.