Finding the Fourth Proportional to 520,841.88, 718,782.24 and 305,980.05
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Solution
The fourth proportional to 520,841.88, 718,782.24 and 305,980.05 is: 422,264.48
Step by Step Solution
- Step 1: Write the proportion equation
520,841.88 : 718,782.24 = 305,980.05 : x - Step 2: Convert to fraction form
520,841.88/718,782.24 = 305,980.05/x - Step 3: Cross multiply
520,841.88x = 718,782.24 × 305,980.05 - Step 4: Simplify right side
520,841.88x = 219,933,025,734.31 - Step 5: Solve for x
x = 219,933,025,734.31/520,841.88 - Step 6: Final answer
x = 422,264.48
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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.