Finding the Fourth Proportional to 405,841.41, 559,817.19 and 268,021.60
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Solution
The fourth proportional to 405,841.41, 559,817.19 and 268,021.60 is: 369,708.70
Step by Step Solution
- Step 1: Write the proportion equation
405,841.41 : 559,817.19 = 268,021.60 : x - Step 2: Convert to fraction form
405,841.41/559,817.19 = 268,021.60/x - Step 3: Cross multiply
405,841.41x = 559,817.19 × 268,021.60 - Step 4: Simplify right side
405,841.41x = 150,043,098,971.30 - Step 5: Solve for x
x = 150,043,098,971.30/405,841.41 - Step 6: Final answer
x = 369,708.70
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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.