Finding the Fourth Proportional to 486,722.60, 731,639.10 and 347,445.80
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Solution
The fourth proportional to 486,722.60, 731,639.10 and 347,445.80 is: 522,278.88
Step by Step Solution
- Step 1: Write the proportion equation
486,722.60 : 731,639.10 = 347,445.80 : x - Step 2: Convert to fraction form
486,722.60/731,639.10 = 347,445.80/x - Step 3: Cross multiply
486,722.60x = 731,639.10 × 347,445.80 - Step 4: Simplify right side
486,722.60x = 254,204,932,410.78 - Step 5: Solve for x
x = 254,204,932,410.78/486,722.60 - Step 6: Final answer
x = 522,278.88
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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.