Finding the Fourth Proportional to 647,497.20, 971,245.80 and 332,569.20
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Solution
The fourth proportional to 647,497.20, 971,245.80 and 332,569.20 is: 498,853.80
Step by Step Solution
- Step 1: Write the proportion equation
647,497.20 : 971,245.80 = 332,569.20 : x - Step 2: Convert to fraction form
647,497.20/971,245.80 = 332,569.20/x - Step 3: Cross multiply
647,497.20x = 971,245.80 × 332,569.20 - Step 4: Simplify right side
647,497.20x = 323,006,438,709.36 - Step 5: Solve for x
x = 323,006,438,709.36/647,497.20 - Step 6: Final answer
x = 498,853.80
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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.