Finding the Fourth Proportional to 647,508.60, 892,540.62 and 486,130.68
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Solution
The fourth proportional to 647,508.60, 892,540.62 and 486,130.68 is: 670,093.62
Step by Step Solution
- Step 1: Write the proportion equation
647,508.60 : 892,540.62 = 486,130.68 : x - Step 2: Convert to fraction form
647,508.60/892,540.62 = 486,130.68/x - Step 3: Cross multiply
647,508.60x = 892,540.62 × 486,130.68 - Step 4: Simplify right side
647,508.60x = 433,891,378,528.22 - Step 5: Solve for x
x = 433,891,378,528.22/647,508.60 - Step 6: Final answer
x = 670,093.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.