Finding the Fourth Proportional to 2,125,878.74, 3,188,829.63 and 629,983.70
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Solution
The fourth proportional to 2,125,878.74, 3,188,829.63 and 629,983.70 is: 944,978.96
Step by Step Solution
- Step 1: Write the proportion equation
2,125,878.74 : 3,188,829.63 = 629,983.70 : x - Step 2: Convert to fraction form
2,125,878.74/3,188,829.63 = 629,983.70/x - Step 3: Cross multiply
2,125,878.74x = 3,188,829.63 × 629,983.70 - Step 4: Simplify right side
2,125,878.74x = 2,008,910,688,977.03 - Step 5: Solve for x
x = 2,008,910,688,977.03/2,125,878.74 - Step 6: Final answer
x = 944,978.96
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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.