Finding the Fourth Proportional to 1,687,867.05, 2,531,800.66 and 408,474.63
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Solution
The fourth proportional to 1,687,867.05, 2,531,800.66 and 408,474.63 is: 612,711.97
Step by Step Solution
- Step 1: Write the proportion equation
1,687,867.05 : 2,531,800.66 = 408,474.63 : x - Step 2: Convert to fraction form
1,687,867.05/2,531,800.66 = 408,474.63/x - Step 3: Cross multiply
1,687,867.05x = 2,531,800.66 × 408,474.63 - Step 4: Simplify right side
1,687,867.05x = 1,034,176,337,827.26 - Step 5: Solve for x
x = 1,034,176,337,827.26/1,687,867.05 - Step 6: Final answer
x = 612,711.97
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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.