Finding the Fourth Proportional to 1,203,479.10, 1,660,583.43 and 773,660.70
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Solution
The fourth proportional to 1,203,479.10, 1,660,583.43 and 773,660.70 is: 1,067,511.80
Step by Step Solution
- Step 1: Write the proportion equation
1,203,479.10 : 1,660,583.43 = 773,660.70 : x - Step 2: Convert to fraction form
1,203,479.10/1,660,583.43 = 773,660.70/x - Step 3: Cross multiply
1,203,479.10x = 1,660,583.43 × 773,660.70 - Step 4: Simplify right side
1,203,479.10x = 1,284,728,138,862.20 - Step 5: Solve for x
x = 1,284,728,138,862.20/1,203,479.10 - Step 6: Final answer
x = 1,067,511.80
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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.