Finding the Fourth Proportional to 1,240,793.84, 1,711,859.44 and 811,325.36
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Solution
The fourth proportional to 1,240,793.84, 1,711,859.44 and 811,325.36 is: 1,119,343.87
Step by Step Solution
- Step 1: Write the proportion equation
1,240,793.84 : 1,711,859.44 = 811,325.36 : x - Step 2: Convert to fraction form
1,240,793.84/1,711,859.44 = 811,325.36/x - Step 3: Cross multiply
1,240,793.84x = 1,711,859.44 × 811,325.36 - Step 4: Simplify right side
1,240,793.84x = 1,388,874,976,427.40 - Step 5: Solve for x
x = 1,388,874,976,427.40/1,240,793.84 - Step 6: Final answer
x = 1,119,343.87
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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.