Finding the Fourth Proportional to 512,289.64, 706,894.50 and 285,944.68
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Solution
The fourth proportional to 512,289.64, 706,894.50 and 285,944.68 is: 394,567.26
Step by Step Solution
- Step 1: Write the proportion equation
512,289.64 : 706,894.50 = 285,944.68 : x - Step 2: Convert to fraction form
512,289.64/706,894.50 = 285,944.68/x - Step 3: Cross multiply
512,289.64x = 706,894.50 × 285,944.68 - Step 4: Simplify right side
512,289.64x = 202,132,721,596.26 - Step 5: Solve for x
x = 202,132,721,596.26/512,289.64 - Step 6: Final answer
x = 394,567.26
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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.