Finding the Fourth Proportional to 782,255.09, 1,079,460.62 and 438,012.09
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Solution
The fourth proportional to 782,255.09, 1,079,460.62 and 438,012.09 is: 604,427.91
Step by Step Solution
- Step 1: Write the proportion equation
782,255.09 : 1,079,460.62 = 438,012.09 : x - Step 2: Convert to fraction form
782,255.09/1,079,460.62 = 438,012.09/x - Step 3: Cross multiply
782,255.09x = 1,079,460.62 × 438,012.09 - Step 4: Simplify right side
782,255.09x = 472,816,802,747.49 - Step 5: Solve for x
x = 472,816,802,747.49/782,255.09 - Step 6: Final answer
x = 604,427.91
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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.