Finding the Fourth Proportional to 467,398.35, 645,141.92 and 276,478.11
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Solution
The fourth proportional to 467,398.35, 645,141.92 and 276,478.11 is: 381,617.99
Step by Step Solution
- Step 1: Write the proportion equation
467,398.35 : 645,141.92 = 276,478.11 : x - Step 2: Convert to fraction form
467,398.35/645,141.92 = 276,478.11/x - Step 3: Cross multiply
467,398.35x = 645,141.92 × 276,478.11 - Step 4: Simplify right side
467,398.35x = 178,367,617,340.98 - Step 5: Solve for x
x = 178,367,617,340.98/467,398.35 - Step 6: Final answer
x = 381,617.99
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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.