Finding the Fourth Proportional to 554,057.97, 764,589.60 and 312,340.70
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Solution
The fourth proportional to 554,057.97, 764,589.60 and 312,340.70 is: 431,024.31
Step by Step Solution
- Step 1: Write the proportion equation
554,057.97 : 764,589.60 = 312,340.70 : x - Step 2: Convert to fraction form
554,057.97/764,589.60 = 312,340.70/x - Step 3: Cross multiply
554,057.97x = 764,589.60 × 312,340.70 - Step 4: Simplify right side
554,057.97x = 238,812,450,876.72 - Step 5: Solve for x
x = 238,812,450,876.72/554,057.97 - Step 6: Final answer
x = 431,024.31
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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.