Finding the Fourth Proportional to 535,428.68, 738,912.12 and 293,721.44
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Solution
The fourth proportional to 535,428.68, 738,912.12 and 293,721.44 is: 405,346.86
Step by Step Solution
- Step 1: Write the proportion equation
535,428.68 : 738,912.12 = 293,721.44 : x - Step 2: Convert to fraction form
535,428.68/738,912.12 = 293,721.44/x - Step 3: Cross multiply
535,428.68x = 738,912.12 × 293,721.44 - Step 4: Simplify right side
535,428.68x = 217,034,331,919.85 - Step 5: Solve for x
x = 217,034,331,919.85/535,428.68 - Step 6: Final answer
x = 405,346.86
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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.