Finding the Fourth Proportional to 647,471.70, 971,207.55 and 395,529.30
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Solution
The fourth proportional to 647,471.70, 971,207.55 and 395,529.30 is: 593,293.95
Step by Step Solution
- Step 1: Write the proportion equation
647,471.70 : 971,207.55 = 395,529.30 : x - Step 2: Convert to fraction form
647,471.70/971,207.55 = 395,529.30/x - Step 3: Cross multiply
647,471.70x = 971,207.55 × 395,529.30 - Step 4: Simplify right side
647,471.70x = 384,141,042,406.22 - Step 5: Solve for x
x = 384,141,042,406.22/647,471.70 - Step 6: Final answer
x = 593,293.95
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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.