Finding the Fourth Proportional to 520,604.13, 718,486.70 and 316,669.12
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Solution
The fourth proportional to 520,604.13, 718,486.70 and 316,669.12 is: 437,035.62
Step by Step Solution
- Step 1: Write the proportion equation
520,604.13 : 718,486.70 = 316,669.12 : x - Step 2: Convert to fraction form
520,604.13/718,486.70 = 316,669.12/x - Step 3: Cross multiply
520,604.13x = 718,486.70 × 316,669.12 - Step 4: Simplify right side
520,604.13x = 227,522,551,020.70 - Step 5: Solve for x
x = 227,522,551,020.70/520,604.13 - Step 6: Final answer
x = 437,035.62
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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.