Finding the Fourth Proportional to 1,219,995.68, 1,682,097.46 and 989,901.41
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Solution
The fourth proportional to 1,219,995.68, 1,682,097.46 and 989,901.41 is: 1,364,849.62
Step by Step Solution
- Step 1: Write the proportion equation
1,219,995.68 : 1,682,097.46 = 989,901.41 : x - Step 2: Convert to fraction form
1,219,995.68/1,682,097.46 = 989,901.41/x - Step 3: Cross multiply
1,219,995.68x = 1,682,097.46 × 989,901.41 - Step 4: Simplify right side
1,219,995.68x = 1,665,110,636,526.18 - Step 5: Solve for x
x = 1,665,110,636,526.18/1,219,995.68 - Step 6: Final answer
x = 1,364,849.62
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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.