Finding the Fourth Proportional to 520,761.53, 718,622.00 and 291,274.49
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Solution
The fourth proportional to 520,761.53, 718,622.00 and 291,274.49 is: 401,942.62
Step by Step Solution
- Step 1: Write the proportion equation
520,761.53 : 718,622.00 = 291,274.49 : x - Step 2: Convert to fraction form
520,761.53/718,622.00 = 291,274.49/x - Step 3: Cross multiply
520,761.53x = 718,622.00 × 291,274.49 - Step 4: Simplify right side
520,761.53x = 209,316,251,503.30 - Step 5: Solve for x
x = 209,316,251,503.30/520,761.53 - Step 6: Final answer
x = 401,942.62
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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.