Finding the Fourth Proportional to 417,813.29, 626,809.89 and 129,619.09
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Solution
The fourth proportional to 417,813.29, 626,809.89 and 129,619.09 is: 194,456.54
Step by Step Solution
- Step 1: Write the proportion equation
417,813.29 : 626,809.89 = 129,619.09 : x - Step 2: Convert to fraction form
417,813.29/626,809.89 = 129,619.09/x - Step 3: Cross multiply
417,813.29x = 626,809.89 × 129,619.09 - Step 4: Simplify right side
417,813.29x = 81,246,527,544.80 - Step 5: Solve for x
x = 81,246,527,544.80/417,813.29 - Step 6: Final answer
x = 194,456.54
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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.