Finding the Fourth Proportional to 1,263,844.32, 1,743,936.72 and 811,747.68
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Solution
The fourth proportional to 1,263,844.32, 1,743,936.72 and 811,747.68 is: 1,120,103.61
Step by Step Solution
- Step 1: Write the proportion equation
1,263,844.32 : 1,743,936.72 = 811,747.68 : x - Step 2: Convert to fraction form
1,263,844.32/1,743,936.72 = 811,747.68/x - Step 3: Cross multiply
1,263,844.32x = 1,743,936.72 × 811,747.68 - Step 4: Simplify right side
1,263,844.32x = 1,415,636,586,526.81 - Step 5: Solve for x
x = 1,415,636,586,526.81/1,263,844.32 - Step 6: Final answer
x = 1,120,103.61
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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.