Finding the Fourth Proportional to 738,742.59, 1,019,464.74 and 399,210.84
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Solution
The fourth proportional to 738,742.59, 1,019,464.74 and 399,210.84 is: 550,910.94
Step by Step Solution
- Step 1: Write the proportion equation
738,742.59 : 1,019,464.74 = 399,210.84 : x - Step 2: Convert to fraction form
738,742.59/1,019,464.74 = 399,210.84/x - Step 3: Cross multiply
738,742.59x = 1,019,464.74 × 399,210.84 - Step 4: Simplify right side
738,742.59x = 406,981,375,205.78 - Step 5: Solve for x
x = 406,981,375,205.78/738,742.59 - Step 6: Final answer
x = 550,910.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.