Finding the Fourth Proportional to 979,497.40, 1,469,246.10 and 811,535.80
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Solution
The fourth proportional to 979,497.40, 1,469,246.10 and 811,535.80 is: 1,217,303.70
Step by Step Solution
- Step 1: Write the proportion equation
979,497.40 : 1,469,246.10 = 811,535.80 : x - Step 2: Convert to fraction form
979,497.40/1,469,246.10 = 811,535.80/x - Step 3: Cross multiply
979,497.40x = 1,469,246.10 × 811,535.80 - Step 4: Simplify right side
979,497.40x = 1,192,345,809,160.38 - Step 5: Solve for x
x = 1,192,345,809,160.38/979,497.40 - Step 6: Final answer
x = 1,217,303.70
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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.