Finding the Fourth Proportional to 2,125,305.49, 2,932,922.40 and 1,207,535.80
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Solution
The fourth proportional to 2,125,305.49, 2,932,922.40 and 1,207,535.80 is: 1,666,399.87
Step by Step Solution
- Step 1: Write the proportion equation
2,125,305.49 : 2,932,922.40 = 1,207,535.80 : x - Step 2: Convert to fraction form
2,125,305.49/2,932,922.40 = 1,207,535.80/x - Step 3: Cross multiply
2,125,305.49x = 2,932,922.40 × 1,207,535.80 - Step 4: Simplify right side
2,125,305.49x = 3,541,608,796,621.92 - Step 5: Solve for x
x = 3,541,608,796,621.92/2,125,305.49 - Step 6: Final answer
x = 1,666,399.87
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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.