Finding the Fourth Proportional to 1,980,370.38, 2,732,711.66 and 1,120,780.98
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Solution
The fourth proportional to 1,980,370.38, 2,732,711.66 and 1,120,780.98 is: 1,546,564.87
Step by Step Solution
- Step 1: Write the proportion equation
1,980,370.38 : 2,732,711.66 = 1,120,780.98 : x - Step 2: Convert to fraction form
1,980,370.38/2,732,711.66 = 1,120,780.98/x - Step 3: Cross multiply
1,980,370.38x = 2,732,711.66 × 1,120,780.98 - Step 4: Simplify right side
1,980,370.38x = 3,062,771,252,352.23 - Step 5: Solve for x
x = 3,062,771,252,352.23/1,980,370.38 - Step 6: Final answer
x = 1,546,564.87
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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.