Finding the Fourth Proportional to 554,072.13, 764,573.67 and 312,414.03
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Solution
The fourth proportional to 554,072.13, 764,573.67 and 312,414.03 is: 431,105.50
Step by Step Solution
- Step 1: Write the proportion equation
554,072.13 : 764,573.67 = 312,414.03 : x - Step 2: Convert to fraction form
554,072.13/764,573.67 = 312,414.03/x - Step 3: Cross multiply
554,072.13x = 764,573.67 × 312,414.03 - Step 4: Simplify right side
554,072.13x = 238,863,541,476.59 - Step 5: Solve for x
x = 238,863,541,476.59/554,072.13 - Step 6: Final answer
x = 431,105.50
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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.