Finding the Fourth Proportional to 1,202,811.39, 1,659,836.21 and 686,591.91
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Solution
The fourth proportional to 1,202,811.39, 1,659,836.21 and 686,591.91 is: 947,472.00
Step by Step Solution
- Step 1: Write the proportion equation
1,202,811.39 : 1,659,836.21 = 686,591.91 : x - Step 2: Convert to fraction form
1,202,811.39/1,659,836.21 = 686,591.91/x - Step 3: Cross multiply
1,202,811.39x = 1,659,836.21 × 686,591.91 - Step 4: Simplify right side
1,202,811.39x = 1,139,630,110,278.10 - Step 5: Solve for x
x = 1,139,630,110,278.10/1,202,811.39 - Step 6: Final answer
x = 947,472.00
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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.