Finding the Fourth Proportional to 787,302.19, 1,086,474.35 and 443,137.92
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Solution
The fourth proportional to 787,302.19, 1,086,474.35 and 443,137.92 is: 611,528.83
Step by Step Solution
- Step 1: Write the proportion equation
787,302.19 : 1,086,474.35 = 443,137.92 : x - Step 2: Convert to fraction form
787,302.19/1,086,474.35 = 443,137.92/x - Step 3: Cross multiply
787,302.19x = 1,086,474.35 × 443,137.92 - Step 4: Simplify right side
787,302.19x = 481,457,984,700.20 - Step 5: Solve for x
x = 481,457,984,700.20/787,302.19 - Step 6: Final answer
x = 611,528.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.