Finding the Fourth Proportional to 691,177.07, 1,036,610.09 and 247,945.07
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Solution
The fourth proportional to 691,177.07, 1,036,610.09 and 247,945.07 is: 371,861.82
Step by Step Solution
- Step 1: Write the proportion equation
691,177.07 : 1,036,610.09 = 247,945.07 : x - Step 2: Convert to fraction form
691,177.07/1,036,610.09 = 247,945.07/x - Step 3: Cross multiply
691,177.07x = 1,036,610.09 × 247,945.07 - Step 4: Simplify right side
691,177.07x = 257,022,361,327.76 - Step 5: Solve for x
x = 257,022,361,327.76/691,177.07 - Step 6: Final answer
x = 371,861.82
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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.