Finding the Fourth Proportional to 843,251.40, 1,262,252.70 and 487,207.80
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Solution
The fourth proportional to 843,251.40, 1,262,252.70 and 487,207.80 is: 729,295.39
Step by Step Solution
- Step 1: Write the proportion equation
843,251.40 : 1,262,252.70 = 487,207.80 : x - Step 2: Convert to fraction form
843,251.40/1,262,252.70 = 487,207.80/x - Step 3: Cross multiply
843,251.40x = 1,262,252.70 × 487,207.80 - Step 4: Simplify right side
843,251.40x = 614,979,361,011.06 - Step 5: Solve for x
x = 614,979,361,011.06/843,251.40 - Step 6: Final answer
x = 729,295.39
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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.