Finding the Fourth Proportional to 1,392,116.70, 2,088,175.05 and 1,226,228.70
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Solution
The fourth proportional to 1,392,116.70, 2,088,175.05 and 1,226,228.70 is: 1,839,343.05
Step by Step Solution
- Step 1: Write the proportion equation
1,392,116.70 : 2,088,175.05 = 1,226,228.70 : x - Step 2: Convert to fraction form
1,392,116.70/2,088,175.05 = 1,226,228.70/x - Step 3: Cross multiply
1,392,116.70x = 2,088,175.05 × 1,226,228.70 - Step 4: Simplify right side
1,392,116.70x = 2,560,580,176,933.94 - Step 5: Solve for x
x = 2,560,580,176,933.94/1,392,116.70 - Step 6: Final answer
x = 1,839,343.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.