Finding the Fourth Proportional to 433,006.20, 649,509.30 and 408,511.80
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Solution
The fourth proportional to 433,006.20, 649,509.30 and 408,511.80 is: 612,767.70
Step by Step Solution
- Step 1: Write the proportion equation
433,006.20 : 649,509.30 = 408,511.80 : x - Step 2: Convert to fraction form
433,006.20/649,509.30 = 408,511.80/x - Step 3: Cross multiply
433,006.20x = 649,509.30 × 408,511.80 - Step 4: Simplify right side
433,006.20x = 265,332,213,259.74 - Step 5: Solve for x
x = 265,332,213,259.74/433,006.20 - Step 6: Final answer
x = 612,767.70
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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.