Finding the Fourth Proportional to 529,717.86, 731,005.20 and 394,357.14
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Solution
The fourth proportional to 529,717.86, 731,005.20 and 394,357.14 is: 544,208.80
Step by Step Solution
- Step 1: Write the proportion equation
529,717.86 : 731,005.20 = 394,357.14 : x - Step 2: Convert to fraction form
529,717.86/731,005.20 = 394,357.14/x - Step 3: Cross multiply
529,717.86x = 731,005.20 × 394,357.14 - Step 4: Simplify right side
529,717.86x = 288,277,119,997.13 - Step 5: Solve for x
x = 288,277,119,997.13/529,717.86 - Step 6: Final answer
x = 544,208.80
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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.