Finding the Fourth Proportional to 864,553.36, 1,192,997.68 and 477,343.66
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Solution
The fourth proportional to 864,553.36, 1,192,997.68 and 477,343.66 is: 658,686.79
Step by Step Solution
- Step 1: Write the proportion equation
864,553.36 : 1,192,997.68 = 477,343.66 : x - Step 2: Convert to fraction form
864,553.36/1,192,997.68 = 477,343.66/x - Step 3: Cross multiply
864,553.36x = 1,192,997.68 × 477,343.66 - Step 4: Simplify right side
864,553.36x = 569,469,878,942.71 - Step 5: Solve for x
x = 569,469,878,942.71/864,553.36 - Step 6: Final answer
x = 658,686.79
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1.5x scale
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.