Finding the Fourth Proportional to 2,479,342.42, 3,421,229.70 and 1,391,733.65
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Solution
The fourth proportional to 2,479,342.42, 3,421,229.70 and 1,391,733.65 is: 1,920,444.90
Step by Step Solution
- Step 1: Write the proportion equation
2,479,342.42 : 3,421,229.70 = 1,391,733.65 : x - Step 2: Convert to fraction form
2,479,342.42/3,421,229.70 = 1,391,733.65/x - Step 3: Cross multiply
2,479,342.42x = 3,421,229.70 × 1,391,733.65 - Step 4: Simplify right side
2,479,342.42x = 4,761,440,497,869.41 - Step 5: Solve for x
x = 4,761,440,497,869.41/2,479,342.42 - Step 6: Final answer
x = 1,920,444.90
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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.