Finding the Fourth Proportional to 2,986,338.68, 4,121,237.58 and 1,628,234.36
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Solution
The fourth proportional to 2,986,338.68, 4,121,237.58 and 1,628,234.36 is: 2,247,012.60
Step by Step Solution
- Step 1: Write the proportion equation
2,986,338.68 : 4,121,237.58 = 1,628,234.36 : x - Step 2: Convert to fraction form
2,986,338.68/4,121,237.58 = 1,628,234.36/x - Step 3: Cross multiply
2,986,338.68x = 4,121,237.58 × 1,628,234.36 - Step 4: Simplify right side
2,986,338.68x = 6,710,340,633,479.25 - Step 5: Solve for x
x = 6,710,340,633,479.25/2,986,338.68 - Step 6: Final answer
x = 2,247,012.60
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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.