Finding the Fourth Proportional to 1,211,290.20, 1,816,935.30 and 737,731.80
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Solution
The fourth proportional to 1,211,290.20, 1,816,935.30 and 737,731.80 is: 1,106,597.70
Step by Step Solution
- Step 1: Write the proportion equation
1,211,290.20 : 1,816,935.30 = 737,731.80 : x - Step 2: Convert to fraction form
1,211,290.20/1,816,935.30 = 737,731.80/x - Step 3: Cross multiply
1,211,290.20x = 1,816,935.30 × 737,731.80 - Step 4: Simplify right side
1,211,290.20x = 1,340,410,949,352.54 - Step 5: Solve for x
x = 1,340,410,949,352.54/1,211,290.20 - Step 6: Final answer
x = 1,106,597.70
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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.