Finding the Fourth Proportional to 816,629.94, 1,126,919.82 and 449,103.91
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Solution
The fourth proportional to 816,629.94, 1,126,919.82 and 449,103.91 is: 619,747.17
Step by Step Solution
- Step 1: Write the proportion equation
816,629.94 : 1,126,919.82 = 449,103.91 : x - Step 2: Convert to fraction form
816,629.94/1,126,919.82 = 449,103.91/x - Step 3: Cross multiply
816,629.94x = 1,126,919.82 × 449,103.91 - Step 4: Simplify right side
816,629.94x = 506,104,097,418.50 - Step 5: Solve for x
x = 506,104,097,418.50/816,629.94 - Step 6: Final answer
x = 619,747.17
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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.