Finding the Fourth Proportional to 980,649.72, 1,470,864.42 and 270,778.68
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Solution
The fourth proportional to 980,649.72, 1,470,864.42 and 270,778.68 is: 406,137.60
Step by Step Solution
- Step 1: Write the proportion equation
980,649.72 : 1,470,864.42 = 270,778.68 : x - Step 2: Convert to fraction form
980,649.72/1,470,864.42 = 270,778.68/x - Step 3: Cross multiply
980,649.72x = 1,470,864.42 × 270,778.68 - Step 4: Simplify right side
980,649.72x = 398,278,726,106.57 - Step 5: Solve for x
x = 398,278,726,106.57/980,649.72 - Step 6: Final answer
x = 406,137.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.