Finding the Fourth Proportional to 3,128,907.32, 4,685,422.14 and 2,622,135.68
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Solution
The fourth proportional to 3,128,907.32, 4,685,422.14 and 2,622,135.68 is: 3,926,550.49
Step by Step Solution
- Step 1: Write the proportion equation
3,128,907.32 : 4,685,422.14 = 2,622,135.68 : x - Step 2: Convert to fraction form
3,128,907.32/4,685,422.14 = 2,622,135.68/x - Step 3: Cross multiply
3,128,907.32x = 4,685,422.14 × 2,622,135.68 - Step 4: Simplify right side
3,128,907.32x = 12,285,812,569,155.96 - Step 5: Solve for x
x = 12,285,812,569,155.96/3,128,907.32 - Step 6: Final answer
x = 3,926,550.49
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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.