Finding the Fourth Proportional to 1,536,480.52, 2,120,344.86 and 857,416.84
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Solution
The fourth proportional to 1,536,480.52, 2,120,344.86 and 857,416.84 is: 1,183,236.21
Step by Step Solution
- Step 1: Write the proportion equation
1,536,480.52 : 2,120,344.86 = 857,416.84 : x - Step 2: Convert to fraction form
1,536,480.52/2,120,344.86 = 857,416.84/x - Step 3: Cross multiply
1,536,480.52x = 2,120,344.86 × 857,416.84 - Step 4: Simplify right side
1,536,480.52x = 1,818,019,389,571.44 - Step 5: Solve for x
x = 1,818,019,389,571.44/1,536,480.52 - Step 6: Final answer
x = 1,183,236.21
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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.