Finding the Fourth Proportional to 1,418,480.70, 2,127,721.05 and 1,379,114.70
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Solution
The fourth proportional to 1,418,480.70, 2,127,721.05 and 1,379,114.70 is: 2,068,672.05
Step by Step Solution
- Step 1: Write the proportion equation
1,418,480.70 : 2,127,721.05 = 1,379,114.70 : x - Step 2: Convert to fraction form
1,418,480.70/2,127,721.05 = 1,379,114.70/x - Step 3: Cross multiply
1,418,480.70x = 2,127,721.05 × 1,379,114.70 - Step 4: Simplify right side
1,418,480.70x = 2,934,371,377,554.43 - Step 5: Solve for x
x = 2,934,371,377,554.43/1,418,480.70 - Step 6: Final answer
x = 2,068,672.05
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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.