Finding the Fourth Proportional to 430,584.94, 645,286.91 and 272,531.26
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Solution
The fourth proportional to 430,584.94, 645,286.91 and 272,531.26 is: 408,423.14
Step by Step Solution
- Step 1: Write the proportion equation
430,584.94 : 645,286.91 = 272,531.26 : x - Step 2: Convert to fraction form
430,584.94/645,286.91 = 272,531.26/x - Step 3: Cross multiply
430,584.94x = 645,286.91 × 272,531.26 - Step 4: Simplify right side
430,584.94x = 175,860,852,098.70 - Step 5: Solve for x
x = 175,860,852,098.70/430,584.94 - Step 6: Final answer
x = 408,423.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.