Finding the Fourth Proportional to 4,295,779.11, 6,434,965.22 and 1,986,990.75
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Solution
The fourth proportional to 4,295,779.11, 6,434,965.22 and 1,986,990.75 is: 2,976,460.39
Step by Step Solution
- Step 1: Write the proportion equation
4,295,779.11 : 6,434,965.22 = 1,986,990.75 : x - Step 2: Convert to fraction form
4,295,779.11/6,434,965.22 = 1,986,990.75/x - Step 3: Cross multiply
4,295,779.11x = 6,434,965.22 × 1,986,990.75 - Step 4: Simplify right side
4,295,779.11x = 12,786,216,358,776.76 - Step 5: Solve for x
x = 12,786,216,358,776.76/4,295,779.11 - Step 6: Final answer
x = 2,976,460.39
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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.