Finding the Fourth Proportional to 640,494.09, 960,706.49 and 324,942.80
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Solution
The fourth proportional to 640,494.09, 960,706.49 and 324,942.80 is: 487,396.61
Step by Step Solution
- Step 1: Write the proportion equation
640,494.09 : 960,706.49 = 324,942.80 : x - Step 2: Convert to fraction form
640,494.09/960,706.49 = 324,942.80/x - Step 3: Cross multiply
640,494.09x = 960,706.49 × 324,942.80 - Step 4: Simplify right side
640,494.09x = 312,174,650,410.53 - Step 5: Solve for x
x = 312,174,650,410.53/640,494.09 - Step 6: Final answer
x = 487,396.61
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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.