Finding the Fourth Proportional to 790,414.08, 1,185,809.73 and 257,936.07
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Solution
The fourth proportional to 790,414.08, 1,185,809.73 and 257,936.07 is: 386,965.65
Step by Step Solution
- Step 1: Write the proportion equation
790,414.08 : 1,185,809.73 = 257,936.07 : x - Step 2: Convert to fraction form
790,414.08/1,185,809.73 = 257,936.07/x - Step 3: Cross multiply
790,414.08x = 1,185,809.73 × 257,936.07 - Step 4: Simplify right side
790,414.08x = 305,863,101,523.96 - Step 5: Solve for x
x = 305,863,101,523.96/790,414.08 - Step 6: Final answer
x = 386,965.65
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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.