Finding the Fourth Proportional to 2,120,990.63, 3,177,471.87 and 1,253,829.34
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Solution
The fourth proportional to 2,120,990.63, 3,177,471.87 and 1,253,829.34 is: 1,878,371.09
Step by Step Solution
- Step 1: Write the proportion equation
2,120,990.63 : 3,177,471.87 = 1,253,829.34 : x - Step 2: Convert to fraction form
2,120,990.63/3,177,471.87 = 1,253,829.34/x - Step 3: Cross multiply
2,120,990.63x = 3,177,471.87 × 1,253,829.34 - Step 4: Simplify right side
2,120,990.63x = 3,984,007,461,602.51 - Step 5: Solve for x
x = 3,984,007,461,602.51/2,120,990.63 - Step 6: Final answer
x = 1,878,371.09
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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.