Finding the Fourth Proportional to 647,532.64, 971,415.84 and 292,713.76
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Solution
The fourth proportional to 647,532.64, 971,415.84 and 292,713.76 is: 439,123.47
Step by Step Solution
- Step 1: Write the proportion equation
647,532.64 : 971,415.84 = 292,713.76 : x - Step 2: Convert to fraction form
647,532.64/971,415.84 = 292,713.76/x - Step 3: Cross multiply
647,532.64x = 971,415.84 × 292,713.76 - Step 4: Simplify right side
647,532.64x = 284,346,783,049.96 - Step 5: Solve for x
x = 284,346,783,049.96/647,532.64 - Step 6: Final answer
x = 439,123.47
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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.