Finding the Fourth Proportional to 520,477.44, 718,260.17 and 291,043.05
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Solution
The fourth proportional to 520,477.44, 718,260.17 and 291,043.05 is: 401,640.14
Step by Step Solution
- Step 1: Write the proportion equation
520,477.44 : 718,260.17 = 291,043.05 : x - Step 2: Convert to fraction form
520,477.44/718,260.17 = 291,043.05/x - Step 3: Cross multiply
520,477.44x = 718,260.17 × 291,043.05 - Step 4: Simplify right side
520,477.44x = 209,044,630,570.32 - Step 5: Solve for x
x = 209,044,630,570.32/520,477.44 - Step 6: Final answer
x = 401,640.14
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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.