Finding the Fourth Proportional to 2,016,378.62, 2,783,631.11 and 1,366,438.26
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Solution
The fourth proportional to 2,016,378.62, 2,783,631.11 and 1,366,438.26 is: 1,886,381.86
Step by Step Solution
- Step 1: Write the proportion equation
2,016,378.62 : 2,783,631.11 = 1,366,438.26 : x - Step 2: Convert to fraction form
2,016,378.62/2,783,631.11 = 1,366,438.26/x - Step 3: Cross multiply
2,016,378.62x = 2,783,631.11 × 1,366,438.26 - Step 4: Simplify right side
2,016,378.62x = 3,803,660,050,430.27 - Step 5: Solve for x
x = 3,803,660,050,430.27/2,016,378.62 - Step 6: Final answer
x = 1,886,381.86
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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.