Finding the Fourth Proportional to 438,894.43, 605,723.59 and 247,920.12
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Solution
The fourth proportional to 438,894.43, 605,723.59 and 247,920.12 is: 342,157.60
Step by Step Solution
- Step 1: Write the proportion equation
438,894.43 : 605,723.59 = 247,920.12 : x - Step 2: Convert to fraction form
438,894.43/605,723.59 = 247,920.12/x - Step 3: Cross multiply
438,894.43x = 605,723.59 × 247,920.12 - Step 4: Simplify right side
438,894.43x = 150,171,065,429.53 - Step 5: Solve for x
x = 150,171,065,429.53/438,894.43 - Step 6: Final answer
x = 342,157.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.