Finding the Fourth Proportional to 1,243,948.58, 1,717,178.69 and 836,286.84
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Solution
The fourth proportional to 1,243,948.58, 1,717,178.69 and 836,286.84 is: 1,154,431.92
Step by Step Solution
- Step 1: Write the proportion equation
1,243,948.58 : 1,717,178.69 = 836,286.84 : x - Step 2: Convert to fraction form
1,243,948.58/1,717,178.69 = 836,286.84/x - Step 3: Cross multiply
1,243,948.58x = 1,717,178.69 × 836,286.84 - Step 4: Simplify right side
1,243,948.58x = 1,436,053,936,194.01 - Step 5: Solve for x
x = 1,436,053,936,194.01/1,243,948.58 - Step 6: Final answer
x = 1,154,431.92
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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.