Finding the Fourth Proportional to 1,278,340.63, 1,764,118.38 and 697,604.65
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Solution
The fourth proportional to 1,278,340.63, 1,764,118.38 and 697,604.65 is: 962,698.95
Step by Step Solution
- Step 1: Write the proportion equation
1,278,340.63 : 1,764,118.38 = 697,604.65 : x - Step 2: Convert to fraction form
1,278,340.63/1,764,118.38 = 697,604.65/x - Step 3: Cross multiply
1,278,340.63x = 1,764,118.38 × 697,604.65 - Step 4: Simplify right side
1,278,340.63x = 1,230,657,185,038.47 - Step 5: Solve for x
x = 1,230,657,185,038.47/1,278,340.63 - Step 6: Final answer
x = 962,698.95
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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.