Finding the Fourth Proportional to 2,986,312.80, 4,476,631.32 and 1,903,786.68
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Solution
The fourth proportional to 2,986,312.80, 4,476,631.32 and 1,903,786.68 is: 2,853,870.86
Step by Step Solution
- Step 1: Write the proportion equation
2,986,312.80 : 4,476,631.32 = 1,903,786.68 : x - Step 2: Convert to fraction form
2,986,312.80/4,476,631.32 = 1,903,786.68/x - Step 3: Cross multiply
2,986,312.80x = 4,476,631.32 × 1,903,786.68 - Step 4: Simplify right side
2,986,312.80x = 8,522,551,078,286.82 - Step 5: Solve for x
x = 8,522,551,078,286.82/2,986,312.80 - Step 6: Final answer
x = 2,853,870.86
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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.