Finding the Fourth Proportional to 561,040.14, 774,231.30 and 306,391.26
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Solution
The fourth proportional to 561,040.14, 774,231.30 and 306,391.26 is: 422,817.70
Step by Step Solution
- Step 1: Write the proportion equation
561,040.14 : 774,231.30 = 306,391.26 : x - Step 2: Convert to fraction form
561,040.14/774,231.30 = 306,391.26/x - Step 3: Cross multiply
561,040.14x = 774,231.30 × 306,391.26 - Step 4: Simplify right side
561,040.14x = 237,217,703,538.44 - Step 5: Solve for x
x = 237,217,703,538.44/561,040.14 - Step 6: Final answer
x = 422,817.70
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1.5x scale
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.