Finding the Fourth Proportional to 1,372,548.23, 1,893,012.11 and 1,206,621.42
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Solution
The fourth proportional to 1,372,548.23, 1,893,012.11 and 1,206,621.42 is: 1,664,166.62
Step by Step Solution
- Step 1: Write the proportion equation
1,372,548.23 : 1,893,012.11 = 1,206,621.42 : x - Step 2: Convert to fraction form
1,372,548.23/1,893,012.11 = 1,206,621.42/x - Step 3: Cross multiply
1,372,548.23x = 1,893,012.11 × 1,206,621.42 - Step 4: Simplify right side
1,372,548.23x = 2,284,148,944,747.23 - Step 5: Solve for x
x = 2,284,148,944,747.23/1,372,548.23 - Step 6: Final answer
x = 1,664,166.62
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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.