Finding the Fourth Proportional to 561,115.13, 774,338.88 and 306,466.92
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Solution
The fourth proportional to 561,115.13, 774,338.88 and 306,466.92 is: 422,924.35
Step by Step Solution
- Step 1: Write the proportion equation
561,115.13 : 774,338.88 = 306,466.92 : x - Step 2: Convert to fraction form
561,115.13/774,338.88 = 306,466.92/x - Step 3: Cross multiply
561,115.13x = 774,338.88 × 306,466.92 - Step 4: Simplify right side
561,115.13x = 237,309,251,589.85 - Step 5: Solve for x
x = 237,309,251,589.85/561,115.13 - Step 6: Final answer
x = 422,924.35
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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.