Finding the Fourth Proportional to 476,936.40, 658,028.70 and 285,880.08
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Solution
The fourth proportional to 476,936.40, 658,028.70 and 285,880.08 is: 394,428.48
Step by Step Solution
- Step 1: Write the proportion equation
476,936.40 : 658,028.70 = 285,880.08 : x - Step 2: Convert to fraction form
476,936.40/658,028.70 = 285,880.08/x - Step 3: Cross multiply
476,936.40x = 658,028.70 × 285,880.08 - Step 4: Simplify right side
476,936.40x = 188,117,297,398.30 - Step 5: Solve for x
x = 188,117,297,398.30/476,936.40 - Step 6: Final answer
x = 394,428.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.