Finding the Fourth Proportional to 1,343,439.75, 1,853,646.64 and 1,126,525.80
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Solution
The fourth proportional to 1,343,439.75, 1,853,646.64 and 1,126,525.80 is: 1,554,353.86
Step by Step Solution
- Step 1: Write the proportion equation
1,343,439.75 : 1,853,646.64 = 1,126,525.80 : x - Step 2: Convert to fraction form
1,343,439.75/1,853,646.64 = 1,126,525.80/x - Step 3: Cross multiply
1,343,439.75x = 1,853,646.64 × 1,126,525.80 - Step 4: Simplify right side
1,343,439.75x = 2,088,180,764,043.31 - Step 5: Solve for x
x = 2,088,180,764,043.31/1,343,439.75 - Step 6: Final answer
x = 1,554,353.86
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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.