Finding the Fourth Proportional to 2,788,321.80, 4,182,482.70 and 2,079,733.80
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Solution
The fourth proportional to 2,788,321.80, 4,182,482.70 and 2,079,733.80 is: 3,119,600.70
Step by Step Solution
- Step 1: Write the proportion equation
2,788,321.80 : 4,182,482.70 = 2,079,733.80 : x - Step 2: Convert to fraction form
2,788,321.80/4,182,482.70 = 2,079,733.80/x - Step 3: Cross multiply
2,788,321.80x = 4,182,482.70 × 2,079,733.80 - Step 4: Simplify right side
2,788,321.80x = 8,698,450,639,105.26 - Step 5: Solve for x
x = 8,698,450,639,105.26/2,788,321.80 - Step 6: Final answer
x = 3,119,600.70
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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.