Finding the Fourth Proportional to 1,186,022.66, 1,636,709.09 and 642,158.98
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Solution
The fourth proportional to 1,186,022.66, 1,636,709.09 and 642,158.98 is: 886,178.21
Step by Step Solution
- Step 1: Write the proportion equation
1,186,022.66 : 1,636,709.09 = 642,158.98 : x - Step 2: Convert to fraction form
1,186,022.66/1,636,709.09 = 642,158.98/x - Step 3: Cross multiply
1,186,022.66x = 1,636,709.09 × 642,158.98 - Step 4: Simplify right side
1,186,022.66x = 1,051,027,439,791.13 - Step 5: Solve for x
x = 1,051,027,439,791.13/1,186,022.66 - Step 6: Final answer
x = 886,178.21
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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.