Finding the Fourth Proportional to 2,147,451.85, 3,221,010.29 and 1,248,320.09
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Solution
The fourth proportional to 2,147,451.85, 3,221,010.29 and 1,248,320.09 is: 1,872,382.78
Step by Step Solution
- Step 1: Write the proportion equation
2,147,451.85 : 3,221,010.29 = 1,248,320.09 : x - Step 2: Convert to fraction form
2,147,451.85/3,221,010.29 = 1,248,320.09/x - Step 3: Cross multiply
2,147,451.85x = 3,221,010.29 × 1,248,320.09 - Step 4: Simplify right side
2,147,451.85x = 4,020,851,866,277.05 - Step 5: Solve for x
x = 4,020,851,866,277.05/2,147,451.85 - Step 6: Final answer
x = 1,872,382.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.