Finding the Fourth Proportional to 2,116,403.73, 2,920,658.58 and 1,149,552.90
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Solution
The fourth proportional to 2,116,403.73, 2,920,658.58 and 1,149,552.90 is: 1,586,394.64
Step by Step Solution
- Step 1: Write the proportion equation
2,116,403.73 : 2,920,658.58 = 1,149,552.90 : x - Step 2: Convert to fraction form
2,116,403.73/2,920,658.58 = 1,149,552.90/x - Step 3: Cross multiply
2,116,403.73x = 2,920,658.58 × 1,149,552.90 - Step 4: Simplify right side
2,116,403.73x = 3,357,451,540,548.88 - Step 5: Solve for x
x = 3,357,451,540,548.88/2,116,403.73 - Step 6: Final answer
x = 1,586,394.64
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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.