Finding the Fourth Proportional to 1,867,943.80, 2,801,915.70 and 1,230,214.60
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Solution
The fourth proportional to 1,867,943.80, 2,801,915.70 and 1,230,214.60 is: 1,845,321.90
Step by Step Solution
- Step 1: Write the proportion equation
1,867,943.80 : 2,801,915.70 = 1,230,214.60 : x - Step 2: Convert to fraction form
1,867,943.80/2,801,915.70 = 1,230,214.60/x - Step 3: Cross multiply
1,867,943.80x = 2,801,915.70 × 1,230,214.60 - Step 4: Simplify right side
1,867,943.80x = 3,446,957,602,109.22 - Step 5: Solve for x
x = 3,446,957,602,109.22/1,867,943.80 - Step 6: Final answer
x = 1,845,321.90
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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.