Finding the Fourth Proportional to 427,900.68, 641,610.91 and 293,117.09
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Solution
The fourth proportional to 427,900.68, 641,610.91 and 293,117.09 is: 439,511.15
Step by Step Solution
- Step 1: Write the proportion equation
427,900.68 : 641,610.91 = 293,117.09 : x - Step 2: Convert to fraction form
427,900.68/641,610.91 = 293,117.09/x - Step 3: Cross multiply
427,900.68x = 641,610.91 × 293,117.09 - Step 4: Simplify right side
427,900.68x = 188,067,118,177.81 - Step 5: Solve for x
x = 188,067,118,177.81/427,900.68 - Step 6: Final answer
x = 439,511.15
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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.