Finding the Fourth Proportional to 1,121,202.85, 1,680,240.84 and 847,424.20
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Solution
The fourth proportional to 1,121,202.85, 1,680,240.84 and 847,424.20 is: 1,269,954.63
Step by Step Solution
- Step 1: Write the proportion equation
1,121,202.85 : 1,680,240.84 = 847,424.20 : x - Step 2: Convert to fraction form
1,121,202.85/1,680,240.84 = 847,424.20/x - Step 3: Cross multiply
1,121,202.85x = 1,680,240.84 × 847,424.20 - Step 4: Simplify right side
1,121,202.85x = 1,423,876,749,644.33 - Step 5: Solve for x
x = 1,423,876,749,644.33/1,121,202.85 - Step 6: Final answer
x = 1,269,954.63
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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.