Finding the Fourth Proportional to 1,207,481.36, 1,666,215.84 and 663,611.20
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Solution
The fourth proportional to 1,207,481.36, 1,666,215.84 and 663,611.20 is: 915,723.86
Step by Step Solution
- Step 1: Write the proportion equation
1,207,481.36 : 1,666,215.84 = 663,611.20 : x - Step 2: Convert to fraction form
1,207,481.36/1,666,215.84 = 663,611.20/x - Step 3: Cross multiply
1,207,481.36x = 1,666,215.84 × 663,611.20 - Step 4: Simplify right side
1,207,481.36x = 1,105,719,493,041.41 - Step 5: Solve for x
x = 1,105,719,493,041.41/1,207,481.36 - Step 6: Final answer
x = 915,723.86
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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.