Finding the Fourth Proportional to 1,532,581.70, 2,115,028.35 and 853,518.20
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Solution
The fourth proportional to 1,532,581.70, 2,115,028.35 and 853,518.20 is: 1,177,891.65
Step by Step Solution
- Step 1: Write the proportion equation
1,532,581.70 : 2,115,028.35 = 853,518.20 : x - Step 2: Convert to fraction form
1,532,581.70/2,115,028.35 = 853,518.20/x - Step 3: Cross multiply
1,532,581.70x = 2,115,028.35 × 853,518.20 - Step 4: Simplify right side
1,532,581.70x = 1,805,215,192,789.62 - Step 5: Solve for x
x = 1,805,215,192,789.62/1,532,581.70 - Step 6: Final answer
x = 1,177,891.65
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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.