Finding the Fourth Proportional to 3,084,865.80, 4,625,354.70 and 1,288,998.60
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Solution
The fourth proportional to 3,084,865.80, 4,625,354.70 and 1,288,998.60 is: 1,932,685.61
Step by Step Solution
- Step 1: Write the proportion equation
3,084,865.80 : 4,625,354.70 = 1,288,998.60 : x - Step 2: Convert to fraction form
3,084,865.80/4,625,354.70 = 1,288,998.60/x - Step 3: Cross multiply
3,084,865.80x = 4,625,354.70 × 1,288,998.60 - Step 4: Simplify right side
3,084,865.80x = 5,962,075,732,803.42 - Step 5: Solve for x
x = 5,962,075,732,803.42/3,084,865.80 - Step 6: Final answer
x = 1,932,685.61
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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.