Finding the Fourth Proportional to 1,112,357.35, 1,668,694.74 and 343,921.19
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Solution
The fourth proportional to 1,112,357.35, 1,668,694.74 and 343,921.19 is: 515,930.85
Step by Step Solution
- Step 1: Write the proportion equation
1,112,357.35 : 1,668,694.74 = 343,921.19 : x - Step 2: Convert to fraction form
1,112,357.35/1,668,694.74 = 343,921.19/x - Step 3: Cross multiply
1,112,357.35x = 1,668,694.74 × 343,921.19 - Step 4: Simplify right side
1,112,357.35x = 573,899,471,094.36 - Step 5: Solve for x
x = 573,899,471,094.36/1,112,357.35 - Step 6: Final answer
x = 515,930.85
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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.