Finding the Fourth Proportional to 3,428,107.30, 4,730,685.55 and 1,879,316.06
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Solution
The fourth proportional to 3,428,107.30, 4,730,685.55 and 1,879,316.06 is: 2,593,399.95
Step by Step Solution
- Step 1: Write the proportion equation
3,428,107.30 : 4,730,685.55 = 1,879,316.06 : x - Step 2: Convert to fraction form
3,428,107.30/4,730,685.55 = 1,879,316.06/x - Step 3: Cross multiply
3,428,107.30x = 4,730,685.55 × 1,879,316.06 - Step 4: Simplify right side
3,428,107.30x = 8,890,453,300,573.22 - Step 5: Solve for x
x = 8,890,453,300,573.22/3,428,107.30 - Step 6: Final answer
x = 2,593,399.95
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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.