Finding the Fourth Proportional to 1,278,427.18, 1,764,329.10 and 734,752.66
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Solution
The fourth proportional to 1,278,427.18, 1,764,329.10 and 734,752.66 is: 1,014,015.91
Step by Step Solution
- Step 1: Write the proportion equation
1,278,427.18 : 1,764,329.10 = 734,752.66 : x - Step 2: Convert to fraction form
1,278,427.18/1,764,329.10 = 734,752.66/x - Step 3: Cross multiply
1,278,427.18x = 1,764,329.10 × 734,752.66 - Step 4: Simplify right side
1,278,427.18x = 1,296,345,499,340.41 - Step 5: Solve for x
x = 1,296,345,499,340.41/1,278,427.18 - Step 6: Final answer
x = 1,014,015.91
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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.