Finding the Fourth Proportional to 643,385.96, 964,451.35 and 306,336.05
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Solution
The fourth proportional to 643,385.96, 964,451.35 and 306,336.05 is: 459,205.26
Step by Step Solution
- Step 1: Write the proportion equation
643,385.96 : 964,451.35 = 306,336.05 : x - Step 2: Convert to fraction form
643,385.96/964,451.35 = 306,336.05/x - Step 3: Cross multiply
643,385.96x = 964,451.35 × 306,336.05 - Step 4: Simplify right side
643,385.96x = 295,446,216,976.17 - Step 5: Solve for x
x = 295,446,216,976.17/643,385.96 - Step 6: Final answer
x = 459,205.26
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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.