Finding the Fourth Proportional to 853,487.76, 1,177,846.98 and 490,911.24
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Solution
The fourth proportional to 853,487.76, 1,177,846.98 and 490,911.24 is: 677,476.99
Step by Step Solution
- Step 1: Write the proportion equation
853,487.76 : 1,177,846.98 = 490,911.24 : x - Step 2: Convert to fraction form
853,487.76/1,177,846.98 = 490,911.24/x - Step 3: Cross multiply
853,487.76x = 1,177,846.98 × 490,911.24 - Step 4: Simplify right side
853,487.76x = 578,218,321,482.06 - Step 5: Solve for x
x = 578,218,321,482.06/853,487.76 - Step 6: Final answer
x = 677,476.99
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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.