Finding the Fourth Proportional to 1,421,775.97, 1,962,050.98 and 777,198.83
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Solution
The fourth proportional to 1,421,775.97, 1,962,050.98 and 777,198.83 is: 1,072,534.46
Step by Step Solution
- Step 1: Write the proportion equation
1,421,775.97 : 1,962,050.98 = 777,198.83 : x - Step 2: Convert to fraction form
1,421,775.97/1,962,050.98 = 777,198.83/x - Step 3: Cross multiply
1,421,775.97x = 1,962,050.98 × 777,198.83 - Step 4: Simplify right side
1,421,775.97x = 1,524,903,716,246.10 - Step 5: Solve for x
x = 1,524,903,716,246.10/1,421,775.97 - Step 6: Final answer
x = 1,072,534.46
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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.