Finding the Fourth Proportional to 1,326,236.01, 1,989,742.20 and 427,659.67
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Solution
The fourth proportional to 1,326,236.01, 1,989,742.20 and 427,659.67 is: 641,614.68
Step by Step Solution
- Step 1: Write the proportion equation
1,326,236.01 : 1,989,742.20 = 427,659.67 : x - Step 2: Convert to fraction form
1,326,236.01/1,989,742.20 = 427,659.67/x - Step 3: Cross multiply
1,326,236.01x = 1,989,742.20 × 427,659.67 - Step 4: Simplify right side
1,326,236.01x = 850,932,492,637.07 - Step 5: Solve for x
x = 850,932,492,637.07/1,326,236.01 - Step 6: Final answer
x = 641,614.68
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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.