Finding the Fourth Proportional to 1,121,202.35, 1,680,240.09 and 847,423.70
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Solution
The fourth proportional to 1,121,202.35, 1,680,240.09 and 847,423.70 is: 1,269,953.88
Step by Step Solution
- Step 1: Write the proportion equation
1,121,202.35 : 1,680,240.09 = 847,423.70 : x - Step 2: Convert to fraction form
1,121,202.35/1,680,240.09 = 847,423.70/x - Step 3: Cross multiply
1,121,202.35x = 1,680,240.09 × 847,423.70 - Step 4: Simplify right side
1,121,202.35x = 1,423,875,273,956.13 - Step 5: Solve for x
x = 1,423,875,273,956.13/1,121,202.35 - Step 6: Final answer
x = 1,269,953.88
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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.