Finding the Fourth Proportional to 579,837.71, 868,917.15 and 399,738.26
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Solution
The fourth proportional to 579,837.71, 868,917.15 and 399,738.26 is: 599,028.70
Step by Step Solution
- Step 1: Write the proportion equation
579,837.71 : 868,917.15 = 399,738.26 : x - Step 2: Convert to fraction form
579,837.71/868,917.15 = 399,738.26/x - Step 3: Cross multiply
579,837.71x = 868,917.15 × 399,738.26 - Step 4: Simplify right side
579,837.71x = 347,339,425,280.57 - Step 5: Solve for x
x = 347,339,425,280.57/579,837.71 - Step 6: Final answer
x = 599,028.70
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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.