Finding the Fourth Proportional to 520,793.10, 718,405.11 and 302,977.31
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Solution
The fourth proportional to 520,793.10, 718,405.11 and 302,977.31 is: 417,940.34
Step by Step Solution
- Step 1: Write the proportion equation
520,793.10 : 718,405.11 = 302,977.31 : x - Step 2: Convert to fraction form
520,793.10/718,405.11 = 302,977.31/x - Step 3: Cross multiply
520,793.10x = 718,405.11 × 302,977.31 - Step 4: Simplify right side
520,793.10x = 217,660,444,126.03 - Step 5: Solve for x
x = 217,660,444,126.03/520,793.10 - Step 6: Final answer
x = 417,940.34
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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.