Finding the Fourth Proportional to 416.90, 626.09 and 395.63
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Solution
The fourth proportional to 416.90, 626.09 and 395.63 is: 594.15
Step by Step Solution
- Step 1: Write the proportion equation
416.90 : 626.09 = 395.63 : x - Step 2: Convert to fraction form
416.90/626.09 = 395.63/x - Step 3: Cross multiply
416.90x = 626.09 × 395.63 - Step 4: Simplify right side
416.90x = 247,699.99 - Step 5: Solve for x
x = 247,699.99/416.90 - Step 6: Final answer
x = 594.15
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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.