Finding the Fourth Proportional to 2,192,903.13, 3,025,403.19 and 1,321,930.38
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Solution
The fourth proportional to 2,192,903.13, 3,025,403.19 and 1,321,930.38 is: 1,823,779.78
Step by Step Solution
- Step 1: Write the proportion equation
2,192,903.13 : 3,025,403.19 = 1,321,930.38 : x - Step 2: Convert to fraction form
2,192,903.13/3,025,403.19 = 1,321,930.38/x - Step 3: Cross multiply
2,192,903.13x = 3,025,403.19 × 1,321,930.38 - Step 4: Simplify right side
2,192,903.13x = 3,999,372,388,609.91 - Step 5: Solve for x
x = 3,999,372,388,609.91/2,192,903.13 - Step 6: Final answer
x = 1,823,779.78
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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.