Finding the Fourth Proportional to 643,406.87, 964,482.76 and 306,356.96
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Solution
The fourth proportional to 643,406.87, 964,482.76 and 306,356.96 is: 459,236.64
Step by Step Solution
- Step 1: Write the proportion equation
643,406.87 : 964,482.76 = 306,356.96 : x - Step 2: Convert to fraction form
643,406.87/964,482.76 = 306,356.96/x - Step 3: Cross multiply
643,406.87x = 964,482.76 × 306,356.96 - Step 4: Simplify right side
643,406.87x = 295,476,009,120.16 - Step 5: Solve for x
x = 295,476,009,120.16/643,406.87 - Step 6: Final answer
x = 459,236.64
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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.