Finding the Fourth Proportional to 2,147,716.20, 3,221,574.30 and 651,805.80
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Solution
The fourth proportional to 2,147,716.20, 3,221,574.30 and 651,805.80 is: 977,708.70
Step by Step Solution
- Step 1: Write the proportion equation
2,147,716.20 : 3,221,574.30 = 651,805.80 : x - Step 2: Convert to fraction form
2,147,716.20/3,221,574.30 = 651,805.80/x - Step 3: Cross multiply
2,147,716.20x = 3,221,574.30 × 651,805.80 - Step 4: Simplify right side
2,147,716.20x = 2,099,840,813,870.94 - Step 5: Solve for x
x = 2,099,840,813,870.94/2,147,716.20 - Step 6: Final answer
x = 977,708.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.