Finding the Fourth Proportional to 681,156.08, 1,021,734.12 and 207,843.92
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Solution
The fourth proportional to 681,156.08, 1,021,734.12 and 207,843.92 is: 311,765.88
Step by Step Solution
- Step 1: Write the proportion equation
681,156.08 : 1,021,734.12 = 207,843.92 : x - Step 2: Convert to fraction form
681,156.08/1,021,734.12 = 207,843.92/x - Step 3: Cross multiply
681,156.08x = 1,021,734.12 × 207,843.92 - Step 4: Simplify right side
681,156.08x = 212,361,224,698.55 - Step 5: Solve for x
x = 212,361,224,698.55/681,156.08 - Step 6: Final answer
x = 311,765.88
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1.5x scale
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.