Finding the Fourth Proportional to 379,630.62, 523,867.77 and 209,854.62
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Solution
The fourth proportional to 379,630.62, 523,867.77 and 209,854.62 is: 289,586.95
Step by Step Solution
- Step 1: Write the proportion equation
379,630.62 : 523,867.77 = 209,854.62 : x - Step 2: Convert to fraction form
379,630.62/523,867.77 = 209,854.62/x - Step 3: Cross multiply
379,630.62x = 523,867.77 × 209,854.62 - Step 4: Simplify right side
379,630.62x = 109,936,071,803.60 - Step 5: Solve for x
x = 109,936,071,803.60/379,630.62 - Step 6: Final answer
x = 289,586.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.