Finding the Fourth Proportional to 2,528,729.13, 3,489,644.68 and 1,382,809.48
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Solution
The fourth proportional to 2,528,729.13, 3,489,644.68 and 1,382,809.48 is: 1,908,276.25
Step by Step Solution
- Step 1: Write the proportion equation
2,528,729.13 : 3,489,644.68 = 1,382,809.48 : x - Step 2: Convert to fraction form
2,528,729.13/3,489,644.68 = 1,382,809.48/x - Step 3: Cross multiply
2,528,729.13x = 3,489,644.68 × 1,382,809.48 - Step 4: Simplify right side
2,528,729.13x = 4,825,513,745,335.57 - Step 5: Solve for x
x = 4,825,513,745,335.57/2,528,729.13 - Step 6: Final answer
x = 1,908,276.25
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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.