Finding the Fourth Proportional to 2,642,793.09, 3,646,957.01 and 1,435,543.17
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Solution
The fourth proportional to 2,642,793.09, 3,646,957.01 and 1,435,543.17 is: 1,980,996.64
Step by Step Solution
- Step 1: Write the proportion equation
2,642,793.09 : 3,646,957.01 = 1,435,543.17 : x - Step 2: Convert to fraction form
2,642,793.09/3,646,957.01 = 1,435,543.17/x - Step 3: Cross multiply
2,642,793.09x = 3,646,957.01 × 1,435,543.17 - Step 4: Simplify right side
2,642,793.09x = 5,235,364,219,811.41 - Step 5: Solve for x
x = 5,235,364,219,811.41/2,642,793.09 - Step 6: Final answer
x = 1,980,996.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.