Finding the Fourth Proportional to 4,311,392.40, 6,469,421.40 and 1,787,302.80
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Solution
The fourth proportional to 4,311,392.40, 6,469,421.40 and 1,787,302.80 is: 2,681,921.27
Step by Step Solution
- Step 1: Write the proportion equation
4,311,392.40 : 6,469,421.40 = 1,787,302.80 : x - Step 2: Convert to fraction form
4,311,392.40/6,469,421.40 = 1,787,302.80/x - Step 3: Cross multiply
4,311,392.40x = 6,469,421.40 × 1,787,302.80 - Step 4: Simplify right side
4,311,392.40x = 11,562,814,982,599.92 - Step 5: Solve for x
x = 11,562,814,982,599.92/4,311,392.40 - Step 6: Final answer
x = 2,681,921.27
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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.