Finding the Fourth Proportional to 659,177.70, 909,672.23 and 387,256.92
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Solution
The fourth proportional to 659,177.70, 909,672.23 and 387,256.92 is: 534,418.66
Step by Step Solution
- Step 1: Write the proportion equation
659,177.70 : 909,672.23 = 387,256.92 : x - Step 2: Convert to fraction form
659,177.70/909,672.23 = 387,256.92/x - Step 3: Cross multiply
659,177.70x = 909,672.23 × 387,256.92 - Step 4: Simplify right side
659,177.70x = 352,276,864,063.05 - Step 5: Solve for x
x = 352,276,864,063.05/659,177.70 - Step 6: Final answer
x = 534,418.66
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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.