Finding the Fourth Proportional to 438,813.12, 605,528.64 and 247,846.08
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Solution
The fourth proportional to 438,813.12, 605,528.64 and 247,846.08 is: 342,008.69
Step by Step Solution
- Step 1: Write the proportion equation
438,813.12 : 605,528.64 = 247,846.08 : x - Step 2: Convert to fraction form
438,813.12/605,528.64 = 247,846.08/x - Step 3: Cross multiply
438,813.12x = 605,528.64 × 247,846.08 - Step 4: Simplify right side
438,813.12x = 150,077,899,751.73 - Step 5: Solve for x
x = 150,077,899,751.73/438,813.12 - Step 6: Final answer
x = 342,008.69
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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.