Finding the Fourth Proportional to 2,154,779.25, 2,973,618.27 and 1,187,944.14
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Solution
The fourth proportional to 2,154,779.25, 2,973,618.27 and 1,187,944.14 is: 1,639,375.54
Step by Step Solution
- Step 1: Write the proportion equation
2,154,779.25 : 2,973,618.27 = 1,187,944.14 : x - Step 2: Convert to fraction form
2,154,779.25/2,973,618.27 = 1,187,944.14/x - Step 3: Cross multiply
2,154,779.25x = 2,973,618.27 × 1,187,944.14 - Step 4: Simplify right side
2,154,779.25x = 3,532,492,398,443.44 - Step 5: Solve for x
x = 3,532,492,398,443.44/2,154,779.25 - Step 6: Final answer
x = 1,639,375.54
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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.