Finding the Fourth Proportional to 1,211,527.20, 1,813,791.60 and 739,135.20
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Solution
The fourth proportional to 1,211,527.20, 1,813,791.60 and 739,135.20 is: 1,106,567.99
Step by Step Solution
- Step 1: Write the proportion equation
1,211,527.20 : 1,813,791.60 = 739,135.20 : x - Step 2: Convert to fraction form
1,211,527.20/1,813,791.60 = 739,135.20/x - Step 3: Cross multiply
1,211,527.20x = 1,813,791.60 × 739,135.20 - Step 4: Simplify right side
1,211,527.20x = 1,340,637,217,024.32 - Step 5: Solve for x
x = 1,340,637,217,024.32/1,211,527.20 - Step 6: Final answer
x = 1,106,567.99
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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.