Finding the Fourth Proportional to 780,313.35, 1,170,469.99 and 219,347.85
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Solution
The fourth proportional to 780,313.35, 1,170,469.99 and 219,347.85 is: 329,021.77
Step by Step Solution
- Step 1: Write the proportion equation
780,313.35 : 1,170,469.99 = 219,347.85 : x - Step 2: Convert to fraction form
780,313.35/1,170,469.99 = 219,347.85/x - Step 3: Cross multiply
780,313.35x = 1,170,469.99 × 219,347.85 - Step 4: Simplify right side
780,313.35x = 256,740,075,796.02 - Step 5: Solve for x
x = 256,740,075,796.02/780,313.35 - Step 6: Final answer
x = 329,021.77
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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.