Finding the Fourth Proportional to 1,642,574.70, 2,266,729.11 and 917,432.73
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Solution
The fourth proportional to 1,642,574.70, 2,266,729.11 and 917,432.73 is: 1,266,043.78
Step by Step Solution
- Step 1: Write the proportion equation
1,642,574.70 : 2,266,729.11 = 917,432.73 : x - Step 2: Convert to fraction form
1,642,574.70/2,266,729.11 = 917,432.73/x - Step 3: Cross multiply
1,642,574.70x = 2,266,729.11 × 917,432.73 - Step 4: Simplify right side
1,642,574.70x = 2,079,571,475,557.77 - Step 5: Solve for x
x = 2,079,571,475,557.77/1,642,574.70 - Step 6: Final answer
x = 1,266,043.78
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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.