Finding the Fourth Proportional to 554,240.92, 764,787.48 and 312,509.09
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Solution
The fourth proportional to 554,240.92, 764,787.48 and 312,509.09 is: 431,225.90
Step by Step Solution
- Step 1: Write the proportion equation
554,240.92 : 764,787.48 = 312,509.09 : x - Step 2: Convert to fraction form
554,240.92/764,787.48 = 312,509.09/x - Step 3: Cross multiply
554,240.92x = 764,787.48 × 312,509.09 - Step 4: Simplify right side
554,240.92x = 239,003,039,418.19 - Step 5: Solve for x
x = 239,003,039,418.19/554,240.92 - Step 6: Final answer
x = 431,225.90
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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.