Finding the Fourth Proportional to 1,631,972.40, 2,431,555.94 and 1,540,297.05
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Solution
The fourth proportional to 1,631,972.40, 2,431,555.94 and 1,540,297.05 is: 2,294,964.33
Step by Step Solution
- Step 1: Write the proportion equation
1,631,972.40 : 2,431,555.94 = 1,540,297.05 : x - Step 2: Convert to fraction form
1,631,972.40/2,431,555.94 = 1,540,297.05/x - Step 3: Cross multiply
1,631,972.40x = 2,431,555.94 × 1,540,297.05 - Step 4: Simplify right side
1,631,972.40x = 3,745,318,441,291.98 - Step 5: Solve for x
x = 3,745,318,441,291.98/1,631,972.40 - Step 6: Final answer
x = 2,294,964.33
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.