Finding the Fourth Proportional to 656,307.36, 905,704.56 and 354,501.36
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Solution
The fourth proportional to 656,307.36, 905,704.56 and 354,501.36 is: 489,212.09
Step by Step Solution
- Step 1: Write the proportion equation
656,307.36 : 905,704.56 = 354,501.36 : x - Step 2: Convert to fraction form
656,307.36/905,704.56 = 354,501.36/x - Step 3: Cross multiply
656,307.36x = 905,704.56 × 354,501.36 - Step 4: Simplify right side
656,307.36x = 321,073,498,278.20 - Step 5: Solve for x
x = 321,073,498,278.20/656,307.36 - Step 6: Final answer
x = 489,212.09
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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.