Finding the Fourth Proportional to 413,621.70, 620,432.55 and 203,669.70
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Solution
The fourth proportional to 413,621.70, 620,432.55 and 203,669.70 is: 305,504.55
Step by Step Solution
- Step 1: Write the proportion equation
413,621.70 : 620,432.55 = 203,669.70 : x - Step 2: Convert to fraction form
413,621.70/620,432.55 = 203,669.70/x - Step 3: Cross multiply
413,621.70x = 620,432.55 × 203,669.70 - Step 4: Simplify right side
413,621.70x = 126,363,311,328.74 - Step 5: Solve for x
x = 126,363,311,328.74/413,621.70 - Step 6: Final answer
x = 305,504.55
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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.