Finding the Fourth Proportional to 2,153,121.12, 3,229,574.31 and 805,184.62
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Solution
The fourth proportional to 2,153,121.12, 3,229,574.31 and 805,184.62 is: 1,207,736.77
Step by Step Solution
- Step 1: Write the proportion equation
2,153,121.12 : 3,229,574.31 = 805,184.62 : x - Step 2: Convert to fraction form
2,153,121.12/3,229,574.31 = 805,184.62/x - Step 3: Cross multiply
2,153,121.12x = 3,229,574.31 × 805,184.62 - Step 4: Simplify right side
2,153,121.12x = 2,600,403,555,485.18 - Step 5: Solve for x
x = 2,600,403,555,485.18/2,153,121.12 - Step 6: Final answer
x = 1,207,736.77
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1.5x scale
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.