Finding the Fourth Proportional to 488,122.20, 656,865.45 and 488,122.20
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Solution
The fourth proportional to 488,122.20, 656,865.45 and 488,122.20 is: 656,865.45
Step by Step Solution
- Step 1: Write the proportion equation
488,122.20 : 656,865.45 = 488,122.20 : x - Step 2: Convert to fraction form
488,122.20/656,865.45 = 488,122.20/x - Step 3: Cross multiply
488,122.20x = 656,865.45 × 488,122.20 - Step 4: Simplify right side
488,122.20x = 320,630,608,557.99 - Step 5: Solve for x
x = 320,630,608,557.99/488,122.20 - Step 6: Final answer
x = 656,865.45
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Why These Related Problems?
These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.