Finding the Fourth Proportional to 2,479,959.22, 3,422,341.14 and 1,392,232.90
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Solution
The fourth proportional to 2,479,959.22, 3,422,341.14 and 1,392,232.90 is: 1,921,279.95
Step by Step Solution
- Step 1: Write the proportion equation
2,479,959.22 : 3,422,341.14 = 1,392,232.90 : x - Step 2: Convert to fraction form
2,479,959.22/3,422,341.14 = 1,392,232.90/x - Step 3: Cross multiply
2,479,959.22x = 3,422,341.14 × 1,392,232.90 - Step 4: Simplify right side
2,479,959.22x = 4,764,695,930,131.51 - Step 5: Solve for x
x = 4,764,695,930,131.51/2,479,959.22 - Step 6: Final answer
x = 1,921,279.95
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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.