Finding the Fourth Proportional to 520,394.74, 718,135.41 and 294,035.38
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Solution
The fourth proportional to 520,394.74, 718,135.41 and 294,035.38 is: 405,763.55
Step by Step Solution
- Step 1: Write the proportion equation
520,394.74 : 718,135.41 = 294,035.38 : x - Step 2: Convert to fraction form
520,394.74/718,135.41 = 294,035.38/x - Step 3: Cross multiply
520,394.74x = 718,135.41 × 294,035.38 - Step 4: Simplify right side
520,394.74x = 211,157,218,170.81 - Step 5: Solve for x
x = 211,157,218,170.81/520,394.74 - Step 6: Final answer
x = 405,763.55
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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.