Finding the Fourth Proportional to 2,591,121.40, 3,878,710.47 and 1,690,624.15
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Solution
The fourth proportional to 2,591,121.40, 3,878,710.47 and 1,690,624.15 is: 2,530,734.99
Step by Step Solution
- Step 1: Write the proportion equation
2,591,121.40 : 3,878,710.47 = 1,690,624.15 : x - Step 2: Convert to fraction form
2,591,121.40/3,878,710.47 = 1,690,624.15/x - Step 3: Cross multiply
2,591,121.40x = 3,878,710.47 × 1,690,624.15 - Step 4: Simplify right side
2,591,121.40x = 6,557,441,572,046.30 - Step 5: Solve for x
x = 6,557,441,572,046.30/2,591,121.40 - Step 6: Final answer
x = 2,530,734.99
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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.