Finding the Fourth Proportional to 640,212.26, 960,450.98 and 261,134.06
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Solution
The fourth proportional to 640,212.26, 960,450.98 and 261,134.06 is: 391,755.17
Step by Step Solution
- Step 1: Write the proportion equation
640,212.26 : 960,450.98 = 261,134.06 : x - Step 2: Convert to fraction form
640,212.26/960,450.98 = 261,134.06/x - Step 3: Cross multiply
640,212.26x = 960,450.98 × 261,134.06 - Step 4: Simplify right side
640,212.26x = 250,806,457,730.45 - Step 5: Solve for x
x = 250,806,457,730.45/640,212.26 - Step 6: Final answer
x = 391,755.17
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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.