Finding the Fourth Proportional to 816,214, 1,223,619.80 and 283,665.84
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Solution
The fourth proportional to 816,214, 1,223,619.80 and 283,665.84 is: 425,255.07
Step by Step Solution
- Step 1: Write the proportion equation
816,214 : 1,223,619.80 = 283,665.84 : x - Step 2: Convert to fraction form
816,214/1,223,619.80 = 283,665.84/x - Step 3: Cross multiply
816,214x = 1,223,619.80 × 283,665.84 - Step 4: Simplify right side
816,214x = 347,099,138,407.63 - Step 5: Solve for x
x = 347,099,138,407.63/816,214 - Step 6: Final answer
x = 425,255.07
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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.