Finding the Fourth Proportional to 853,422.66, 1,177,759.05 and 490,846.62
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Solution
The fourth proportional to 853,422.66, 1,177,759.05 and 490,846.62 is: 677,388.91
Step by Step Solution
- Step 1: Write the proportion equation
853,422.66 : 1,177,759.05 = 490,846.62 : x - Step 2: Convert to fraction form
853,422.66/1,177,759.05 = 490,846.62/x - Step 3: Cross multiply
853,422.66x = 1,177,759.05 × 490,846.62 - Step 4: Simplify right side
853,422.66x = 578,099,048,866.91 - Step 5: Solve for x
x = 578,099,048,866.91/853,422.66 - Step 6: Final answer
x = 677,388.91
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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.