Finding the Fourth Proportional to 905,647.68, 1,358,716.59 and 306,608.94
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Solution
The fourth proportional to 905,647.68, 1,358,716.59 and 306,608.94 is: 459,996.38
Step by Step Solution
- Step 1: Write the proportion equation
905,647.68 : 1,358,716.59 = 306,608.94 : x - Step 2: Convert to fraction form
905,647.68/1,358,716.59 = 306,608.94/x - Step 3: Cross multiply
905,647.68x = 1,358,716.59 × 306,608.94 - Step 4: Simplify right side
905,647.68x = 416,594,653,420.32 - Step 5: Solve for x
x = 416,594,653,420.32/905,647.68 - Step 6: Final answer
x = 459,996.38
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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.