Finding the Fourth Proportional to 2,121,287.92, 2,927,443.73 and 1,203,555.75
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Solution
The fourth proportional to 2,121,287.92, 2,927,443.73 and 1,203,555.75 is: 1,660,944.61
Step by Step Solution
- Step 1: Write the proportion equation
2,121,287.92 : 2,927,443.73 = 1,203,555.75 : x - Step 2: Convert to fraction form
2,121,287.92/2,927,443.73 = 1,203,555.75/x - Step 3: Cross multiply
2,121,287.92x = 2,927,443.73 × 1,203,555.75 - Step 4: Simplify right side
2,121,287.92x = 3,523,341,734,042.95 - Step 5: Solve for x
x = 3,523,341,734,042.95/2,121,287.92 - Step 6: Final answer
x = 1,660,944.61
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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.