Finding the Fourth Proportional to 643,532.98, 965,325.39 and 306,400.18
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Solution
The fourth proportional to 643,532.98, 965,325.39 and 306,400.18 is: 459,612.61
Step by Step Solution
- Step 1: Write the proportion equation
643,532.98 : 965,325.39 = 306,400.18 : x - Step 2: Convert to fraction form
643,532.98/965,325.39 = 306,400.18/x - Step 3: Cross multiply
643,532.98x = 965,325.39 × 306,400.18 - Step 4: Simplify right side
643,532.98x = 295,775,873,254.57 - Step 5: Solve for x
x = 295,775,873,254.57/643,532.98 - Step 6: Final answer
x = 459,612.61
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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.