Finding the Fourth Proportional to 4,278,353.31, 6,417,540.90 and 1,083,479.85
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Solution
The fourth proportional to 4,278,353.31, 6,417,540.90 and 1,083,479.85 is: 1,625,222.54
Step by Step Solution
- Step 1: Write the proportion equation
4,278,353.31 : 6,417,540.90 = 1,083,479.85 : x - Step 2: Convert to fraction form
4,278,353.31/6,417,540.90 = 1,083,479.85/x - Step 3: Cross multiply
4,278,353.31x = 6,417,540.90 × 1,083,479.85 - Step 4: Simplify right side
4,278,353.31x = 6,953,276,251,700.87 - Step 5: Solve for x
x = 6,953,276,251,700.87/4,278,353.31 - Step 6: Final answer
x = 1,625,222.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.