Finding the Fourth Proportional to 647,625.60, 971,146.80 and 292,456.80
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Solution
The fourth proportional to 647,625.60, 971,146.80 and 292,456.80 is: 438,553.52
Step by Step Solution
- Step 1: Write the proportion equation
647,625.60 : 971,146.80 = 292,456.80 : x - Step 2: Convert to fraction form
647,625.60/971,146.80 = 292,456.80/x - Step 3: Cross multiply
647,625.60x = 971,146.80 × 292,456.80 - Step 4: Simplify right side
647,625.60x = 284,018,485,458.24 - Step 5: Solve for x
x = 284,018,485,458.24/647,625.60 - Step 6: Final answer
x = 438,553.52
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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.