Finding the Fourth Proportional to 1,945,538.16, 2,683,531.80 and 1,690,450.80
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Solution
The fourth proportional to 1,945,538.16, 2,683,531.80 and 1,690,450.80 is: 2,331,683.12
Step by Step Solution
- Step 1: Write the proportion equation
1,945,538.16 : 2,683,531.80 = 1,690,450.80 : x - Step 2: Convert to fraction form
1,945,538.16/2,683,531.80 = 1,690,450.80/x - Step 3: Cross multiply
1,945,538.16x = 2,683,531.80 × 1,690,450.80 - Step 4: Simplify right side
1,945,538.16x = 4,536,378,478,135.44 - Step 5: Solve for x
x = 4,536,378,478,135.44/1,945,538.16 - Step 6: Final answer
x = 2,331,683.12
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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.