Finding the Fourth Proportional to 520,476.44, 718,258.79 and 291,042.05
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Solution
The fourth proportional to 520,476.44, 718,258.79 and 291,042.05 is: 401,638.76
Step by Step Solution
- Step 1: Write the proportion equation
520,476.44 : 718,258.79 = 291,042.05 : x - Step 2: Convert to fraction form
520,476.44/718,258.79 = 291,042.05/x - Step 3: Cross multiply
520,476.44x = 718,258.79 × 291,042.05 - Step 4: Simplify right side
520,476.44x = 209,043,507,808.43 - Step 5: Solve for x
x = 209,043,507,808.43/520,476.44 - Step 6: Final answer
x = 401,638.76
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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.