Finding the Fourth Proportional to 2,162,857.21, 2,984,776.19 and 1,195,969.93
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Solution
The fourth proportional to 2,162,857.21, 2,984,776.19 and 1,195,969.93 is: 1,650,456.88
Step by Step Solution
- Step 1: Write the proportion equation
2,162,857.21 : 2,984,776.19 = 1,195,969.93 : x - Step 2: Convert to fraction form
2,162,857.21/2,984,776.19 = 1,195,969.93/x - Step 3: Cross multiply
2,162,857.21x = 2,984,776.19 × 1,195,969.93 - Step 4: Simplify right side
2,162,857.21x = 3,569,702,562,063.06 - Step 5: Solve for x
x = 3,569,702,562,063.06/2,162,857.21 - Step 6: Final answer
x = 1,650,456.88
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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.