Finding the Fourth Proportional to 2,748,861.20, 4,122,125.40 and 1,329,352.40
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Solution
The fourth proportional to 2,748,861.20, 4,122,125.40 and 1,329,352.40 is: 1,993,464.53
Step by Step Solution
- Step 1: Write the proportion equation
2,748,861.20 : 4,122,125.40 = 1,329,352.40 : x - Step 2: Convert to fraction form
2,748,861.20/4,122,125.40 = 1,329,352.40/x - Step 3: Cross multiply
2,748,861.20x = 4,122,125.40 × 1,329,352.40 - Step 4: Simplify right side
2,748,861.20x = 5,479,757,293,590.96 - Step 5: Solve for x
x = 5,479,757,293,590.96/2,748,861.20 - Step 6: Final answer
x = 1,993,464.53
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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.