Finding the Fourth Proportional to 561,529.26, 774,908.51 and 306,880.38
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Solution
The fourth proportional to 561,529.26, 774,908.51 and 306,880.38 is: 423,493.90
Step by Step Solution
- Step 1: Write the proportion equation
561,529.26 : 774,908.51 = 306,880.38 : x - Step 2: Convert to fraction form
561,529.26/774,908.51 = 306,880.38/x - Step 3: Cross multiply
561,529.26x = 774,908.51 × 306,880.38 - Step 4: Simplify right side
561,529.26x = 237,804,216,479.63 - Step 5: Solve for x
x = 237,804,216,479.63/561,529.26 - Step 6: Final answer
x = 423,493.90
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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.