Finding the Fourth Proportional to 659,779.14, 910,440.74 and 387,858.48
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Solution
The fourth proportional to 659,779.14, 910,440.74 and 387,858.48 is: 535,212.68
Step by Step Solution
- Step 1: Write the proportion equation
659,779.14 : 910,440.74 = 387,858.48 : x - Step 2: Convert to fraction form
659,779.14/910,440.74 = 387,858.48/x - Step 3: Cross multiply
659,779.14x = 910,440.74 × 387,858.48 - Step 4: Simplify right side
659,779.14x = 353,122,161,546.48 - Step 5: Solve for x
x = 353,122,161,546.48/659,779.14 - Step 6: Final answer
x = 535,212.68
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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.