Finding the Fourth Proportional to 939,784.56, 1,296,883.35 and 531,879.09
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Solution
The fourth proportional to 939,784.56, 1,296,883.35 and 531,879.09 is: 733,982.20
Step by Step Solution
- Step 1: Write the proportion equation
939,784.56 : 1,296,883.35 = 531,879.09 : x - Step 2: Convert to fraction form
939,784.56/1,296,883.35 = 531,879.09/x - Step 3: Cross multiply
939,784.56x = 1,296,883.35 × 531,879.09 - Step 4: Simplify right side
939,784.56x = 689,785,136,034.15 - Step 5: Solve for x
x = 689,785,136,034.15/939,784.56 - Step 6: Final answer
x = 733,982.20
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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.