Finding the Fourth Proportional to 586,396.13, 809,221.19 and 331,747.31
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Solution
The fourth proportional to 586,396.13, 809,221.19 and 331,747.31 is: 457,808.20
Step by Step Solution
- Step 1: Write the proportion equation
586,396.13 : 809,221.19 = 331,747.31 : x - Step 2: Convert to fraction form
586,396.13/809,221.19 = 331,747.31/x - Step 3: Cross multiply
586,396.13x = 809,221.19 × 331,747.31 - Step 4: Simplify right side
586,396.13x = 268,456,953,341.82 - Step 5: Solve for x
x = 268,456,953,341.82/586,396.13 - Step 6: Final answer
x = 457,808.20
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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.