Finding the Fourth Proportional to 1,251,169.82, 1,726,567.90 and 678,197.70
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Solution
The fourth proportional to 1,251,169.82, 1,726,567.90 and 678,197.70 is: 935,887.65
Step by Step Solution
- Step 1: Write the proportion equation
1,251,169.82 : 1,726,567.90 = 678,197.70 : x - Step 2: Convert to fraction form
1,251,169.82/1,726,567.90 = 678,197.70/x - Step 3: Cross multiply
1,251,169.82x = 1,726,567.90 × 678,197.70 - Step 4: Simplify right side
1,251,169.82x = 1,170,954,378,673.83 - Step 5: Solve for x
x = 1,170,954,378,673.83/1,251,169.82 - Step 6: Final answer
x = 935,887.65
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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.