Finding the Fourth Proportional to 512,288.64, 706,893.12 and 285,943.68
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Solution
The fourth proportional to 512,288.64, 706,893.12 and 285,943.68 is: 394,565.88
Step by Step Solution
- Step 1: Write the proportion equation
512,288.64 : 706,893.12 = 285,943.68 : x - Step 2: Convert to fraction form
512,288.64/706,893.12 = 285,943.68/x - Step 3: Cross multiply
512,288.64x = 706,893.12 × 285,943.68 - Step 4: Simplify right side
512,288.64x = 202,131,620,099.48 - Step 5: Solve for x
x = 202,131,620,099.48/512,288.64 - Step 6: Final answer
x = 394,565.88
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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.