Finding the Fourth Proportional to 1,107,579.99, 1,661,650.20 and 308,861.61
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Solution
The fourth proportional to 1,107,579.99, 1,661,650.20 and 308,861.61 is: 463,370.55
Step by Step Solution
- Step 1: Write the proportion equation
1,107,579.99 : 1,661,650.20 = 308,861.61 : x - Step 2: Convert to fraction form
1,107,579.99/1,661,650.20 = 308,861.61/x - Step 3: Cross multiply
1,107,579.99x = 1,661,650.20 × 308,861.61 - Step 4: Simplify right side
1,107,579.99x = 513,219,949,797.63 - Step 5: Solve for x
x = 513,219,949,797.63/1,107,579.99 - Step 6: Final answer
x = 463,370.55
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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.