Finding the Fourth Proportional to 409,052.22, 613,584.45 and 128,569.38
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Solution
The fourth proportional to 409,052.22, 613,584.45 and 128,569.38 is: 192,855.99
Step by Step Solution
- Step 1: Write the proportion equation
409,052.22 : 613,584.45 = 128,569.38 : x - Step 2: Convert to fraction form
409,052.22/613,584.45 = 128,569.38/x - Step 3: Cross multiply
409,052.22x = 613,584.45 × 128,569.38 - Step 4: Simplify right side
409,052.22x = 78,888,172,314.14 - Step 5: Solve for x
x = 78,888,172,314.14/409,052.22 - Step 6: Final answer
x = 192,855.99
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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.