Finding the Fourth Proportional to 408,049.70, 611,476.95 and 365,929.70
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Solution
The fourth proportional to 408,049.70, 611,476.95 and 365,929.70 is: 548,358.64
Step by Step Solution
- Step 1: Write the proportion equation
408,049.70 : 611,476.95 = 365,929.70 : x - Step 2: Convert to fraction form
408,049.70/611,476.95 = 365,929.70/x - Step 3: Cross multiply
408,049.70x = 611,476.95 × 365,929.70 - Step 4: Simplify right side
408,049.70x = 223,757,576,870.42 - Step 5: Solve for x
x = 223,757,576,870.42/408,049.70 - Step 6: Final answer
x = 548,358.64
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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.