Finding the Fourth Proportional to 561,513.87, 774,889.74 and 306,865.26
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Solution
The fourth proportional to 561,513.87, 774,889.74 and 306,865.26 is: 423,474.39
Step by Step Solution
- Step 1: Write the proportion equation
561,513.87 : 774,889.74 = 306,865.26 : x - Step 2: Convert to fraction form
561,513.87/774,889.74 = 306,865.26/x - Step 3: Cross multiply
561,513.87x = 774,889.74 × 306,865.26 - Step 4: Simplify right side
561,513.87x = 237,786,741,536.43 - Step 5: Solve for x
x = 237,786,741,536.43/561,513.87 - Step 6: Final answer
x = 423,474.39
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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.