Finding the Fourth Proportional to 2,989,660.75, 4,125,730.75 and 1,631,533.75
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Solution
The fourth proportional to 2,989,660.75, 4,125,730.75 and 1,631,533.75 is: 2,251,515.98
Step by Step Solution
- Step 1: Write the proportion equation
2,989,660.75 : 4,125,730.75 = 1,631,533.75 : x - Step 2: Convert to fraction form
2,989,660.75/4,125,730.75 = 1,631,533.75/x - Step 3: Cross multiply
2,989,660.75x = 4,125,730.75 × 1,631,533.75 - Step 4: Simplify right side
2,989,660.75x = 6,731,268,962,037.81 - Step 5: Solve for x
x = 6,731,268,962,037.81/2,989,660.75 - Step 6: Final answer
x = 2,251,515.98
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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.