Finding the Fourth Proportional to 719,703.49, 1,079,481.05 and 239,879.45
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Solution
The fourth proportional to 719,703.49, 1,079,481.05 and 239,879.45 is: 359,794.45
Step by Step Solution
- Step 1: Write the proportion equation
719,703.49 : 1,079,481.05 = 239,879.45 : x - Step 2: Convert to fraction form
719,703.49/1,079,481.05 = 239,879.45/x - Step 3: Cross multiply
719,703.49x = 1,079,481.05 × 239,879.45 - Step 4: Simplify right side
719,703.49x = 258,945,320,559.42 - Step 5: Solve for x
x = 258,945,320,559.42/719,703.49 - Step 6: Final answer
x = 359,794.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.