Finding the Fourth Proportional to 836,385.36, 1,160,133.84 and 807,709.92
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Solution
The fourth proportional to 836,385.36, 1,160,133.84 and 807,709.92 is: 1,120,358.70
Step by Step Solution
- Step 1: Write the proportion equation
836,385.36 : 1,160,133.84 = 807,709.92 : x - Step 2: Convert to fraction form
836,385.36/1,160,133.84 = 807,709.92/x - Step 3: Cross multiply
836,385.36x = 1,160,133.84 × 807,709.92 - Step 4: Simplify right side
836,385.36x = 937,051,611,095.69 - Step 5: Solve for x
x = 937,051,611,095.69/836,385.36 - Step 6: Final answer
x = 1,120,358.70
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.