Finding the Fourth Proportional to 2,543,107.66, 3,509,491.64 and 1,381,554.70
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Solution
The fourth proportional to 2,543,107.66, 3,509,491.64 and 1,381,554.70 is: 1,906,547.15
Step by Step Solution
- Step 1: Write the proportion equation
2,543,107.66 : 3,509,491.64 = 1,381,554.70 : x - Step 2: Convert to fraction form
2,543,107.66/3,509,491.64 = 1,381,554.70/x - Step 3: Cross multiply
2,543,107.66x = 3,509,491.64 × 1,381,554.70 - Step 4: Simplify right side
2,543,107.66x = 4,848,554,654,171.21 - Step 5: Solve for x
x = 4,848,554,654,171.21/2,543,107.66 - Step 6: Final answer
x = 1,906,547.15
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1.5x scale
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.