Finding the Fourth Proportional to 417,812.29, 626,808.39 and 129,618.09
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Solution
The fourth proportional to 417,812.29, 626,808.39 and 129,618.09 is: 194,455.04
Step by Step Solution
- Step 1: Write the proportion equation
417,812.29 : 626,808.39 = 129,618.09 : x - Step 2: Convert to fraction form
417,812.29/626,808.39 = 129,618.09/x - Step 3: Cross multiply
417,812.29x = 626,808.39 × 129,618.09 - Step 4: Simplify right side
417,812.29x = 81,245,706,550.81 - Step 5: Solve for x
x = 81,245,706,550.81/417,812.29 - Step 6: Final answer
x = 194,455.04
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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.