Finding the Fourth Proportional to 541,763.70, 811,898.21 and 408,497.49
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Solution
The fourth proportional to 541,763.70, 811,898.21 and 408,497.49 is: 612,182.73
Step by Step Solution
- Step 1: Write the proportion equation
541,763.70 : 811,898.21 = 408,497.49 : x - Step 2: Convert to fraction form
541,763.70/811,898.21 = 408,497.49/x - Step 3: Cross multiply
541,763.70x = 811,898.21 × 408,497.49 - Step 4: Simplify right side
541,763.70x = 331,658,378,878.01 - Step 5: Solve for x
x = 331,658,378,878.01/541,763.70 - Step 6: Final answer
x = 612,182.73
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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.