Finding the Fourth Proportional to 554,378.22, 764,996.10 and 312,720.18
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Solution
The fourth proportional to 554,378.22, 764,996.10 and 312,720.18 is: 431,527.99
Step by Step Solution
- Step 1: Write the proportion equation
554,378.22 : 764,996.10 = 312,720.18 : x - Step 2: Convert to fraction form
554,378.22/764,996.10 = 312,720.18/x - Step 3: Cross multiply
554,378.22x = 764,996.10 × 312,720.18 - Step 4: Simplify right side
554,378.22x = 239,229,718,091.30 - Step 5: Solve for x
x = 239,229,718,091.30/554,378.22 - Step 6: Final answer
x = 431,527.99
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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.