Finding the Fourth Proportional to 1,378,562.73, 1,902,134.97 and 805,492.14
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Solution
The fourth proportional to 1,378,562.73, 1,902,134.97 and 805,492.14 is: 1,111,414.62
Step by Step Solution
- Step 1: Write the proportion equation
1,378,562.73 : 1,902,134.97 = 805,492.14 : x - Step 2: Convert to fraction form
1,378,562.73/1,902,134.97 = 805,492.14/x - Step 3: Cross multiply
1,378,562.73x = 1,902,134.97 × 805,492.14 - Step 4: Simplify right side
1,378,562.73x = 1,532,154,767,554.14 - Step 5: Solve for x
x = 1,532,154,767,554.14/1,378,562.73 - Step 6: Final answer
x = 1,111,414.62
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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.