Finding the Fourth Proportional to 2,867,846.21, 3,957,678.07 and 1,561,135.78
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Solution
The fourth proportional to 2,867,846.21, 3,957,678.07 and 1,561,135.78 is: 2,154,394.76
Step by Step Solution
- Step 1: Write the proportion equation
2,867,846.21 : 3,957,678.07 = 1,561,135.78 : x - Step 2: Convert to fraction form
2,867,846.21/3,957,678.07 = 1,561,135.78/x - Step 3: Cross multiply
2,867,846.21x = 3,957,678.07 × 1,561,135.78 - Step 4: Simplify right side
2,867,846.21x = 6,178,472,850,623.99 - Step 5: Solve for x
x = 6,178,472,850,623.99/2,867,846.21 - Step 6: Final answer
x = 2,154,394.76
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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.