Finding the Fourth Proportional to 1,561,399.97, 2,155,953.17 and 1,198,248.62
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Solution
The fourth proportional to 1,561,399.97, 2,155,953.17 and 1,198,248.62 is: 1,654,520.28
Step by Step Solution
- Step 1: Write the proportion equation
1,561,399.97 : 2,155,953.17 = 1,198,248.62 : x - Step 2: Convert to fraction form
1,561,399.97/2,155,953.17 = 1,198,248.62/x - Step 3: Cross multiply
1,561,399.97x = 2,155,953.17 × 1,198,248.62 - Step 4: Simplify right side
1,561,399.97x = 2,583,367,902,952.98 - Step 5: Solve for x
x = 2,583,367,902,952.98/1,561,399.97 - Step 6: Final answer
x = 1,654,520.28
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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.