Finding the Fourth Proportional to 673,649.16, 929,635.70 and 371,843.08
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Solution
The fourth proportional to 673,649.16, 929,635.70 and 371,843.08 is: 513,143.37
Step by Step Solution
- Step 1: Write the proportion equation
673,649.16 : 929,635.70 = 371,843.08 : x - Step 2: Convert to fraction form
673,649.16/929,635.70 = 371,843.08/x - Step 3: Cross multiply
673,649.16x = 929,635.70 × 371,843.08 - Step 4: Simplify right side
673,649.16x = 345,678,601,965.96 - Step 5: Solve for x
x = 345,678,601,965.96/673,649.16 - Step 6: Final answer
x = 513,143.37
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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.