Finding the Fourth Proportional to 421,827.84, 582,121.35 and 230,839.56
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Solution
The fourth proportional to 421,827.84, 582,121.35 and 230,839.56 is: 318,558.01
Step by Step Solution
- Step 1: Write the proportion equation
421,827.84 : 582,121.35 = 230,839.56 : x - Step 2: Convert to fraction form
421,827.84/582,121.35 = 230,839.56/x - Step 3: Cross multiply
421,827.84x = 582,121.35 × 230,839.56 - Step 4: Simplify right side
421,827.84x = 134,376,636,300.61 - Step 5: Solve for x
x = 134,376,636,300.61/421,827.84 - Step 6: Final answer
x = 318,558.01
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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.