Finding the Fourth Proportional to 1,213,764.40, 1,821,302.70 and 539,949.70
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Solution
The fourth proportional to 1,213,764.40, 1,821,302.70 and 539,949.70 is: 810,216.42
Step by Step Solution
- Step 1: Write the proportion equation
1,213,764.40 : 1,821,302.70 = 539,949.70 : x - Step 2: Convert to fraction form
1,213,764.40/1,821,302.70 = 539,949.70/x - Step 3: Cross multiply
1,213,764.40x = 1,821,302.70 × 539,949.70 - Step 4: Simplify right side
1,213,764.40x = 983,411,846,474.19 - Step 5: Solve for x
x = 983,411,846,474.19/1,213,764.40 - Step 6: Final answer
x = 810,216.42
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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.