Finding the Fourth Proportional to 727,819.96, 1,004,378.16 and 405,523.12
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Solution
The fourth proportional to 727,819.96, 1,004,378.16 and 405,523.12 is: 559,614.45
Step by Step Solution
- Step 1: Write the proportion equation
727,819.96 : 1,004,378.16 = 405,523.12 : x - Step 2: Convert to fraction form
727,819.96/1,004,378.16 = 405,523.12/x - Step 3: Cross multiply
727,819.96x = 1,004,378.16 × 405,523.12 - Step 4: Simplify right side
727,819.96x = 407,298,565,103.06 - Step 5: Solve for x
x = 407,298,565,103.06/727,819.96 - Step 6: Final answer
x = 559,614.45
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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.