Finding the Fourth Proportional to 405,921.24, 608,869.26 and 192,842.46
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Solution
The fourth proportional to 405,921.24, 608,869.26 and 192,842.46 is: 289,257.70
Step by Step Solution
- Step 1: Write the proportion equation
405,921.24 : 608,869.26 = 192,842.46 : x - Step 2: Convert to fraction form
405,921.24/608,869.26 = 192,842.46/x - Step 3: Cross multiply
405,921.24x = 608,869.26 × 192,842.46 - Step 4: Simplify right side
405,921.24x = 117,415,845,916.78 - Step 5: Solve for x
x = 117,415,845,916.78/405,921.24 - Step 6: Final answer
x = 289,257.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.