Finding the Fourth Proportional to 2,168,540.67, 2,992,603.68 and 1,201,687.02
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Solution
The fourth proportional to 2,168,540.67, 2,992,603.68 and 1,201,687.02 is: 1,658,337.82
Step by Step Solution
- Step 1: Write the proportion equation
2,168,540.67 : 2,992,603.68 = 1,201,687.02 : x - Step 2: Convert to fraction form
2,168,540.67/2,992,603.68 = 1,201,687.02/x - Step 3: Cross multiply
2,168,540.67x = 2,992,603.68 × 1,201,687.02 - Step 4: Simplify right side
2,168,540.67x = 3,596,172,998,260.23 - Step 5: Solve for x
x = 3,596,172,998,260.23/2,168,540.67 - Step 6: Final answer
x = 1,658,337.82
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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.