Finding the Fourth Proportional to 458,305.11, 686,462.58 and 280,272.38
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Solution
The fourth proportional to 458,305.11, 686,462.58 and 280,272.38 is: 419,800.03
Step by Step Solution
- Step 1: Write the proportion equation
458,305.11 : 686,462.58 = 280,272.38 : x - Step 2: Convert to fraction form
458,305.11/686,462.58 = 280,272.38/x - Step 3: Cross multiply
458,305.11x = 686,462.58 × 280,272.38 - Step 4: Simplify right side
458,305.11x = 192,396,497,645.23 - Step 5: Solve for x
x = 192,396,497,645.23/458,305.11 - Step 6: Final answer
x = 419,800.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.