Finding the Fourth Proportional to 647,686.12, 971,514.60 and 292,604.80
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Solution
The fourth proportional to 647,686.12, 971,514.60 and 292,604.80 is: 438,900.61
Step by Step Solution
- Step 1: Write the proportion equation
647,686.12 : 971,514.60 = 292,604.80 : x - Step 2: Convert to fraction form
647,686.12/971,514.60 = 292,604.80/x - Step 3: Cross multiply
647,686.12x = 971,514.60 × 292,604.80 - Step 4: Simplify right side
647,686.12x = 284,269,835,230.08 - Step 5: Solve for x
x = 284,269,835,230.08/647,686.12 - Step 6: Final answer
x = 438,900.61
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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.