Finding the Fourth Proportional to 643,387.96, 964,454.35 and 306,338.05
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Solution
The fourth proportional to 643,387.96, 964,454.35 and 306,338.05 is: 459,208.26
Step by Step Solution
- Step 1: Write the proportion equation
643,387.96 : 964,454.35 = 306,338.05 : x - Step 2: Convert to fraction form
643,387.96/964,454.35 = 306,338.05/x - Step 3: Cross multiply
643,387.96x = 964,454.35 × 306,338.05 - Step 4: Simplify right side
643,387.96x = 295,449,064,893.02 - Step 5: Solve for x
x = 295,449,064,893.02/643,387.96 - Step 6: Final answer
x = 459,208.26
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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.